Common Weakness Enumeration
Show details on NVD website
Show details on NVD website
Show details on NVD website
Show details on NVD website
Show details on NVD website
Show details on NVD website
Show details on NVD website
Show details on NVD website
Show details on NVD website
Show details on NVD website
Back to CWE stats page
CWE-121
Stack-based Buffer Overflow
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CVE-2026-41956 (GCVE-0-2026-41956)
Vulnerability from cvelistv5 – Published: 2026-05-13 14:12 – Updated: 2026-05-13 16:13
VLAI
Title
BIG-IP TMM Vulnerability
Summary
When a classification profile is configured on a UDP virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://my.f5.com/manage/s/article/K000158038 | vendor-advisorypatch |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| F5 | BIG-IP |
Unaffected:
21.0.0 , < *
(custom)
Affected: 17.5.0 , < 17.5.1.4 (custom) Affected: 17.1.0 , < 17.1.3.1 (custom) Affected: 16.1.0 , < * (custom) |
|
| F5 | BIG-IP Next CNF |
Unaffected:
2.1.0 , < *
(custom)
Affected: 2.0.0 , < 2.0.3 (custom) Affected: 1.4.0 , < 1.4.1 (custom) |
|
| F5 | BIG-IP Next for Kubernetes |
Affected:
2.0.0 , < 2.1.0
(custom)
|
Date Public
2026-05-13 14:00
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-41956",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-13T16:01:41.083944Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-13T16:13:57.444Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"modules": [
"All Modules"
],
"product": "BIG-IP",
"vendor": "F5",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "21.0.0",
"versionType": "custom"
},
{
"lessThan": "17.5.1.4",
"status": "affected",
"version": "17.5.0",
"versionType": "custom"
},
{
"lessThan": "17.1.3.1",
"status": "affected",
"version": "17.1.0",
"versionType": "custom"
},
{
"lessThan": "*",
"status": "affected",
"version": "16.1.0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "BIG-IP Next CNF",
"vendor": "F5",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "2.1.0",
"versionType": "custom"
},
{
"lessThan": "2.0.3",
"status": "affected",
"version": "2.0.0",
"versionType": "custom"
},
{
"lessThan": "1.4.1",
"status": "affected",
"version": "1.4.0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "BIG-IP Next for Kubernetes",
"vendor": "F5",
"versions": [
{
"lessThan": "2.1.0",
"status": "affected",
"version": "2.0.0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "F5"
}
],
"datePublic": "2026-05-13T14:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eWhen a classification profile is configured on a UDP virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate.\u0026nbsp;\u0026nbsp;\u003c/span\u003eNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated."
}
],
"value": "When a classification profile is configured on a UDP virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate.\u00a0\u00a0Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
},
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "CWE-121 Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-13T14:12:33.594Z",
"orgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab",
"shortName": "f5"
},
"references": [
{
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://my.f5.com/manage/s/article/K000158038"
}
],
"source": {
"discovery": "INTERNAL"
},
"title": "BIG-IP TMM Vulnerability",
"x_generator": {
"engine": "F5 SIRTBot v1.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab",
"assignerShortName": "f5",
"cveId": "CVE-2026-41956",
"datePublished": "2026-05-13T14:12:33.594Z",
"dateReserved": "2026-04-30T23:02:47.690Z",
"dateUpdated": "2026-05-13T16:13:57.444Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-41963 (GCVE-0-2026-41963)
Vulnerability from cvelistv5 – Published: 2026-05-15 09:03 – Updated: 2026-05-15 11:04
VLAI
Summary
Stack overflow vulnerability in the media platform. Impact: Successful exploitation of this vulnerability may affect availability.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based buffer overflow
Assigner
References
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-41963",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-15T11:04:03.251204Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-15T11:04:36.538Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "HarmonyOS",
"vendor": "Huawei",
"versions": [
{
"status": "affected",
"version": "6.1.0"
},
{
"status": "affected",
"version": "6.0.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Stack overflow vulnerability in the media platform.\u0026nbsp;Impact: Successful exploitation of this vulnerability may affect availability."
}
],
"value": "Stack overflow vulnerability in the media platform.\u00a0Impact: Successful exploitation of this vulnerability may affect availability."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 2.8,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "CWE-121 Stack-based buffer overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-15T09:03:49.272Z",
"orgId": "25ac1063-e409-4190-8079-24548c77ea2e",
"shortName": "huawei"
},
"references": [
{
"url": "https://consumer.huawei.com/en/support/bulletin/2026/5/"
},
{
"url": "https://consumer.huawei.com/en/support/bulletinvision/2026/5/"
},
{
"url": "https://consumer.huawei.com/en/support/bulletinwearables/2026/5/"
},
{
"url": "https://consumer.huawei.com/en/support/bulletinlaptops/2026/5/"
}
],
"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
}
},
"cveMetadata": {
"assignerOrgId": "25ac1063-e409-4190-8079-24548c77ea2e",
"assignerShortName": "huawei",
"cveId": "CVE-2026-41963",
"datePublished": "2026-05-15T09:03:49.272Z",
"dateReserved": "2026-04-23T01:42:44.928Z",
"dateUpdated": "2026-05-15T11:04:36.538Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-42050 (GCVE-0-2026-42050)
Vulnerability from cvelistv5 – Published: 2026-05-11 19:46 – Updated: 2026-05-12 13:30
VLAI
Title
ImageMagick: Stack buffer overflow in XTileImage
Summary
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 7.1.2-21 and 6.9.13-46, a malicious MIFF file could trigger an overflow when a user opens it in the display tool and right-clicks a tile to invoke the Load / Update menu item. This vulnerability is fixed in 7.1.2-21 and 6.9.13-46.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/ImageMagick/ImageMagick/securi… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ImageMagick | ImageMagick |
Affected:
< 6.9.13-46
Affected: >= 7.0.0, < 7.1.2-20 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-42050",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-12T13:30:31.730656Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-12T13:30:47.683Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "ImageMagick",
"vendor": "ImageMagick",
"versions": [
{
"status": "affected",
"version": "\u003c 6.9.13-46"
},
{
"status": "affected",
"version": "\u003e= 7.0.0, \u003c 7.1.2-20"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 7.1.2-21 and 6.9.13-46, a malicious MIFF file could trigger an overflow when a user opens it in the display tool and right-clicks a tile to invoke the Load / Update menu item. This vulnerability is fixed in 7.1.2-21 and 6.9.13-46."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "CWE-121: Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T19:46:50.770Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-7mxf-ff4f-jj7p",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-7mxf-ff4f-jj7p"
}
],
"source": {
"advisory": "GHSA-7mxf-ff4f-jj7p",
"discovery": "UNKNOWN"
},
"title": "ImageMagick: Stack buffer overflow in XTileImage"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-42050",
"datePublished": "2026-05-11T19:46:50.770Z",
"dateReserved": "2026-04-23T16:05:01.710Z",
"dateUpdated": "2026-05-12T13:30:47.683Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4211 (GCVE-0-2026-4211)
Vulnerability from cvelistv5 – Published: 2026-03-16 03:32 – Updated: 2026-03-16 15:30
VLAI
Title
D-Link DNS-1550-04 local_backup_mgr.cgi Local_Backup_Info stack-based overflow
Summary
A weakness has been identified in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. Affected by this issue is the function Local_Backup_Info of the file /cgi-bin/local_backup_mgr.cgi. This manipulation of the argument f_idx causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.351122 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.351122 | signaturepermissions-required |
| https://vuldb.com/?submit.770441 | third-party-advisory |
| https://github.com/wudipjq/my_vuln/blob/main/D-Li… | exploit |
| https://www.dlink.com/ | product |
Impacted products
20 products
| Vendor | Product | Version | |
|---|---|---|---|
| D-Link | DNS-120 |
Affected:
20260205
|
|
| D-Link | DNR-202L |
Affected:
20260205
|
|
| D-Link | DNS-315L |
Affected:
20260205
|
|
| D-Link | DNS-320 |
Affected:
20260205
|
|
| D-Link | DNS-320L |
Affected:
20260205
|
|
| D-Link | DNS-320LW |
Affected:
20260205
|
|
| D-Link | DNS-321 |
Affected:
20260205
|
|
| D-Link | DNR-322L |
Affected:
20260205
|
|
| D-Link | DNS-323 |
Affected:
20260205
|
|
| D-Link | DNS-325 |
Affected:
20260205
|
|
| D-Link | DNS-326 |
Affected:
20260205
|
|
| D-Link | DNS-327L |
Affected:
20260205
|
|
| D-Link | DNR-326 |
Affected:
20260205
|
|
| D-Link | DNS-340L |
Affected:
20260205
|
|
| D-Link | DNS-343 |
Affected:
20260205
|
|
| D-Link | DNS-345 |
Affected:
20260205
|
|
| D-Link | DNS-726-4 |
Affected:
20260205
|
|
| D-Link | DNS-1100-4 |
Affected:
20260205
|
|
| D-Link | DNS-1200-05 |
Affected:
20260205
|
|
| D-Link | DNS-1550-04 |
Affected:
20260205
|
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-4211",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-16T15:30:50.377709Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-16T15:30:57.338Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "DNS-120",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNR-202L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-315L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-320",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-320L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-320LW",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-321",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNR-322L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-323",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-325",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-326",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-327L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNR-326",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-340L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-343",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-345",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-726-4",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-1100-4",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-1200-05",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-1550-04",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "pjqwudi (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A weakness has been identified in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. Affected by this issue is the function Local_Backup_Info of the file /cgi-bin/local_backup_mgr.cgi. This manipulation of the argument f_idx causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 8.7,
"baseSeverity": "HIGH",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 9,
"vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "Memory Corruption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-16T03:32:10.022Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-351122 | D-Link DNS-1550-04 local_backup_mgr.cgi Local_Backup_Info stack-based overflow",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/?id.351122"
},
{
"name": "VDB-351122 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/?ctiid.351122"
},
{
"name": "Submit #770441 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/326/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Stack-based Buffer Overflow",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/?submit.770441"
},
{
"tags": [
"exploit"
],
"url": "https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_160/160.md"
},
{
"tags": [
"product"
],
"url": "https://www.dlink.com/"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-03-15T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-03-15T01:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-03-15T13:04:30.000Z",
"value": "VulDB entry last update"
}
],
"title": "D-Link DNS-1550-04 local_backup_mgr.cgi Local_Backup_Info stack-based overflow"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-4211",
"datePublished": "2026-03-16T03:32:10.022Z",
"dateReserved": "2026-03-15T11:59:27.035Z",
"dateUpdated": "2026-03-16T15:30:57.338Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4212 (GCVE-0-2026-4212)
Vulnerability from cvelistv5 – Published: 2026-03-16 03:32 – Updated: 2026-03-16 15:30
VLAI
Title
D-Link DNS-1550-04 download_mgr.cgi Downloads_Schedule_Info stack-based overflow
Summary
A security vulnerability has been detected in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. This affects the function Downloads_Schedule_Info of the file /cgi-bin/download_mgr.cgi. Such manipulation leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.351123 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.351123 | signaturepermissions-required |
| https://vuldb.com/?submit.770442 | third-party-advisory |
| https://github.com/wudipjq/my_vuln/blob/main/D-Li… | exploit |
| https://www.dlink.com/ | product |
Impacted products
20 products
| Vendor | Product | Version | |
|---|---|---|---|
| D-Link | DNS-120 |
Affected:
20260205
|
|
| D-Link | DNR-202L |
Affected:
20260205
|
|
| D-Link | DNS-315L |
Affected:
20260205
|
|
| D-Link | DNS-320 |
Affected:
20260205
|
|
| D-Link | DNS-320L |
Affected:
20260205
|
|
| D-Link | DNS-320LW |
Affected:
20260205
|
|
| D-Link | DNS-321 |
Affected:
20260205
|
|
| D-Link | DNR-322L |
Affected:
20260205
|
|
| D-Link | DNS-323 |
Affected:
20260205
|
|
| D-Link | DNS-325 |
Affected:
20260205
|
|
| D-Link | DNS-326 |
Affected:
20260205
|
|
| D-Link | DNS-327L |
Affected:
20260205
|
|
| D-Link | DNR-326 |
Affected:
20260205
|
|
| D-Link | DNS-340L |
Affected:
20260205
|
|
| D-Link | DNS-343 |
Affected:
20260205
|
|
| D-Link | DNS-345 |
Affected:
20260205
|
|
| D-Link | DNS-726-4 |
Affected:
20260205
|
|
| D-Link | DNS-1100-4 |
Affected:
20260205
|
|
| D-Link | DNS-1200-05 |
Affected:
20260205
|
|
| D-Link | DNS-1550-04 |
Affected:
20260205
|
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-4212",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-16T15:30:18.101617Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-16T15:30:26.181Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "DNS-120",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNR-202L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-315L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-320",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-320L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-320LW",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-321",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNR-322L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-323",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-325",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-326",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-327L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNR-326",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-340L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-343",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-345",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-726-4",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-1100-4",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-1200-05",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-1550-04",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "pjqwudi (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A security vulnerability has been detected in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. This affects the function Downloads_Schedule_Info of the file /cgi-bin/download_mgr.cgi. Such manipulation leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 8.7,
"baseSeverity": "HIGH",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 9,
"vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "Memory Corruption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-16T03:32:14.004Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-351123 | D-Link DNS-1550-04 download_mgr.cgi Downloads_Schedule_Info stack-based overflow",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/?id.351123"
},
{
"name": "VDB-351123 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/?ctiid.351123"
},
{
"name": "Submit #770442 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/326/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Stack-based Buffer Overflow",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/?submit.770442"
},
{
"tags": [
"exploit"
],
"url": "https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_161/161.md"
},
{
"tags": [
"product"
],
"url": "https://www.dlink.com/"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-03-15T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-03-15T01:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-03-15T13:07:55.000Z",
"value": "VulDB entry last update"
}
],
"title": "D-Link DNS-1550-04 download_mgr.cgi Downloads_Schedule_Info stack-based overflow"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-4212",
"datePublished": "2026-03-16T03:32:14.004Z",
"dateReserved": "2026-03-15T12:02:46.389Z",
"dateUpdated": "2026-03-16T15:30:26.181Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4213 (GCVE-0-2026-4213)
Vulnerability from cvelistv5 – Published: 2026-03-16 04:02 – Updated: 2026-03-16 14:40
VLAI
Title
D-Link DNS-1550-04 gui_mgr.cgi cgi_myfavorite_verify stack-based overflow
Summary
A vulnerability was detected in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. This vulnerability affects the function cgi_myfavorite_del_user/cgi_myfavorite_verify of the file /cgi-bin/gui_mgr.cgi. Performing a manipulation results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.351124 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.351124 | signaturepermissions-required |
| https://vuldb.com/?submit.770443 | third-party-advisory |
| https://vuldb.com/?submit.770444 | third-party-advisory |
| https://github.com/wudipjq/my_vuln/blob/main/D-Li… | related |
| https://github.com/wudipjq/my_vuln/blob/main/D-Li… | exploit |
| https://www.dlink.com/ | product |
Impacted products
20 products
| Vendor | Product | Version | |
|---|---|---|---|
| D-Link | DNS-120 |
Affected:
20260205
|
|
| D-Link | DNR-202L |
Affected:
20260205
|
|
| D-Link | DNS-315L |
Affected:
20260205
|
|
| D-Link | DNS-320 |
Affected:
20260205
|
|
| D-Link | DNS-320L |
Affected:
20260205
|
|
| D-Link | DNS-320LW |
Affected:
20260205
|
|
| D-Link | DNS-321 |
Affected:
20260205
|
|
| D-Link | DNR-322L |
Affected:
20260205
|
|
| D-Link | DNS-323 |
Affected:
20260205
|
|
| D-Link | DNS-325 |
Affected:
20260205
|
|
| D-Link | DNS-326 |
Affected:
20260205
|
|
| D-Link | DNS-327L |
Affected:
20260205
|
|
| D-Link | DNR-326 |
Affected:
20260205
|
|
| D-Link | DNS-340L |
Affected:
20260205
|
|
| D-Link | DNS-343 |
Affected:
20260205
|
|
| D-Link | DNS-345 |
Affected:
20260205
|
|
| D-Link | DNS-726-4 |
Affected:
20260205
|
|
| D-Link | DNS-1100-4 |
Affected:
20260205
|
|
| D-Link | DNS-1200-05 |
Affected:
20260205
|
|
| D-Link | DNS-1550-04 |
Affected:
20260205
|
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-4213",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-16T14:27:31.903041Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-16T14:40:37.269Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "DNS-120",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNR-202L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-315L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-320",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-320L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-320LW",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-321",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNR-322L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-323",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-325",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-326",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-327L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNR-326",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-340L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-343",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-345",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-726-4",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-1100-4",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-1200-05",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-1550-04",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "pjqwudi (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was detected in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. This vulnerability affects the function cgi_myfavorite_del_user/cgi_myfavorite_verify of the file /cgi-bin/gui_mgr.cgi. Performing a manipulation results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 8.7,
"baseSeverity": "HIGH",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 9,
"vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "Memory Corruption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-16T04:02:09.641Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-351124 | D-Link DNS-1550-04 gui_mgr.cgi cgi_myfavorite_verify stack-based overflow",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/?id.351124"
},
{
"name": "VDB-351124 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/?ctiid.351124"
},
{
"name": "Submit #770443 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/326/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Stack-based Buffer Overflow",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/?submit.770443"
},
{
"name": "Submit #770444 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/326/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Stack-based Buffer Overflow (Duplicate)",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/?submit.770444"
},
{
"tags": [
"related"
],
"url": "https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_162/162.md"
},
{
"tags": [
"exploit"
],
"url": "https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_163/163.md"
},
{
"tags": [
"product"
],
"url": "https://www.dlink.com/"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-03-15T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-03-15T01:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-03-15T13:07:59.000Z",
"value": "VulDB entry last update"
}
],
"title": "D-Link DNS-1550-04 gui_mgr.cgi cgi_myfavorite_verify stack-based overflow"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-4213",
"datePublished": "2026-03-16T04:02:09.641Z",
"dateReserved": "2026-03-15T12:02:52.367Z",
"dateUpdated": "2026-03-16T14:40:37.269Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4214 (GCVE-0-2026-4214)
Vulnerability from cvelistv5 – Published: 2026-03-16 04:32 – Updated: 2026-03-16 14:40
VLAI
Title
D-Link DNS-1550-04 app_mgr.cgi UPnP_AV_Server_Path_Setting stack-based overflow
Summary
A flaw has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. This issue affects the function UPnP_AV_Server_Path_Setting of the file /cgi-bin/app_mgr.cgi. Executing a manipulation can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been published and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.351125 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.351125 | signaturepermissions-required |
| https://vuldb.com/?submit.770445 | third-party-advisory |
| https://github.com/wudipjq/my_vuln/blob/main/D-Li… | exploit |
| https://www.dlink.com/ | product |
Impacted products
20 products
| Vendor | Product | Version | |
|---|---|---|---|
| D-Link | DNS-120 |
Affected:
20260205
|
|
| D-Link | DNR-202L |
Affected:
20260205
|
|
| D-Link | DNS-315L |
Affected:
20260205
|
|
| D-Link | DNS-320 |
Affected:
20260205
|
|
| D-Link | DNS-320L |
Affected:
20260205
|
|
| D-Link | DNS-320LW |
Affected:
20260205
|
|
| D-Link | DNS-321 |
Affected:
20260205
|
|
| D-Link | DNR-322L |
Affected:
20260205
|
|
| D-Link | DNS-323 |
Affected:
20260205
|
|
| D-Link | DNS-325 |
Affected:
20260205
|
|
| D-Link | DNS-326 |
Affected:
20260205
|
|
| D-Link | DNS-327L |
Affected:
20260205
|
|
| D-Link | DNR-326 |
Affected:
20260205
|
|
| D-Link | DNS-340L |
Affected:
20260205
|
|
| D-Link | DNS-343 |
Affected:
20260205
|
|
| D-Link | DNS-345 |
Affected:
20260205
|
|
| D-Link | DNS-726-4 |
Affected:
20260205
|
|
| D-Link | DNS-1100-4 |
Affected:
20260205
|
|
| D-Link | DNS-1200-05 |
Affected:
20260205
|
|
| D-Link | DNS-1550-04 |
Affected:
20260205
|
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-4214",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-16T14:25:50.340086Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-16T14:40:37.489Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "DNS-120",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNR-202L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-315L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-320",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-320L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-320LW",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-321",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNR-322L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-323",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-325",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-326",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-327L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNR-326",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-340L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-343",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-345",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-726-4",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-1100-4",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-1200-05",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-1550-04",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "pjq123 (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A flaw has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. This issue affects the function UPnP_AV_Server_Path_Setting of the file /cgi-bin/app_mgr.cgi. Executing a manipulation can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been published and may be used."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 8.7,
"baseSeverity": "HIGH",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 9,
"vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "Memory Corruption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-16T04:32:10.373Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-351125 | D-Link DNS-1550-04 app_mgr.cgi UPnP_AV_Server_Path_Setting stack-based overflow",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/?id.351125"
},
{
"name": "VDB-351125 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/?ctiid.351125"
},
{
"name": "Submit #770445 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/326/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Stack-based Buffer Overflow",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/?submit.770445"
},
{
"tags": [
"exploit"
],
"url": "https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_164/164.md"
},
{
"tags": [
"product"
],
"url": "https://www.dlink.com/"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-03-15T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-03-15T01:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-03-15T13:08:11.000Z",
"value": "VulDB entry last update"
}
],
"title": "D-Link DNS-1550-04 app_mgr.cgi UPnP_AV_Server_Path_Setting stack-based overflow"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-4214",
"datePublished": "2026-03-16T04:32:10.373Z",
"dateReserved": "2026-03-15T12:02:57.695Z",
"dateUpdated": "2026-03-16T14:40:37.489Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4226 (GCVE-0-2026-4226)
Vulnerability from cvelistv5 – Published: 2026-03-16 07:32 – Updated: 2026-03-16 17:06
VLAI
Title
LB-LINK BL-WR9000 get_virtual_cfg sub_44E8D0 stack-based overflow
Summary
A weakness has been identified in LB-LINK BL-WR9000 2.4.9. The affected element is the function sub_44E8D0 of the file /goform/get_virtual_cfg. Executing a manipulation can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.351149 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.351149 | signaturepermissions-required |
| https://vuldb.com/?submit.771207 | third-party-advisory |
| https://github.com/glkfc/IoT-Vulnerability/blob/m… | exploit |
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-4226",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-16T17:02:09.943914Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-16T17:06:42.899Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "BL-WR9000",
"vendor": "LB-LINK",
"versions": [
{
"status": "affected",
"version": "2.4.9"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "jfkk (VulDB User)"
},
{
"lang": "en",
"type": "coordinator",
"value": "VulDB"
}
],
"descriptions": [
{
"lang": "en",
"value": "A weakness has been identified in LB-LINK BL-WR9000 2.4.9. The affected element is the function sub_44E8D0 of the file /goform/get_virtual_cfg. Executing a manipulation can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 8.7,
"baseSeverity": "HIGH",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 9,
"vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "Memory Corruption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-16T07:32:10.845Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-351149 | LB-LINK BL-WR9000 get_virtual_cfg sub_44E8D0 stack-based overflow",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/?id.351149"
},
{
"name": "VDB-351149 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/?ctiid.351149"
},
{
"name": "Submit #771207 | LB-LINK BL-WR9000 V2.4.9 over",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/?submit.771207"
},
{
"tags": [
"exploit"
],
"url": "https://github.com/glkfc/IoT-Vulnerability/blob/main/LB-LINK/LB-LINK_VirtualRules%20stack%20overflow_EN.md"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-03-15T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-03-15T01:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-03-15T19:46:24.000Z",
"value": "VulDB entry last update"
}
],
"title": "LB-LINK BL-WR9000 get_virtual_cfg sub_44E8D0 stack-based overflow"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-4226",
"datePublished": "2026-03-16T07:32:10.845Z",
"dateReserved": "2026-03-15T18:41:08.804Z",
"dateUpdated": "2026-03-16T17:06:42.899Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4254 (GCVE-0-2026-4254)
Vulnerability from cvelistv5 – Published: 2026-03-16 17:32 – Updated: 2026-03-16 18:29
VLAI
Title
Tenda AC8 HTTP Endpoint SysToolChangePwd doSystemCmd stack-based overflow
Summary
A weakness has been identified in Tenda AC8 up to 16.03.50.11. This vulnerability affects the function doSystemCmd of the file /goform/SysToolChangePwd of the component HTTP Endpoint. This manipulation of the argument local_2c causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.
Severity
9.8 (Critical)
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.351212 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.351212 | signaturepermissions-required |
| https://vuldb.com/?submit.771773 | third-party-advisory |
| https://github.com/digitalandrew/tenda_ac8_v5/blo… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Tenda | AC8 |
Affected:
16.03.50.0
Affected: 16.03.50.1 Affected: 16.03.50.2 Affected: 16.03.50.3 Affected: 16.03.50.4 Affected: 16.03.50.5 Affected: 16.03.50.6 Affected: 16.03.50.7 Affected: 16.03.50.8 Affected: 16.03.50.9 Affected: 16.03.50.10 Affected: 16.03.50.11 cpe:2.3:o:tenda:ac8_firmware:*:*:*:*:*:*:*:* |
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-4254",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-16T18:29:16.971487Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-16T18:29:35.800Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:o:tenda:ac8_firmware:*:*:*:*:*:*:*:*"
],
"modules": [
"HTTP Endpoint"
],
"product": "AC8",
"vendor": "Tenda",
"versions": [
{
"status": "affected",
"version": "16.03.50.0"
},
{
"status": "affected",
"version": "16.03.50.1"
},
{
"status": "affected",
"version": "16.03.50.2"
},
{
"status": "affected",
"version": "16.03.50.3"
},
{
"status": "affected",
"version": "16.03.50.4"
},
{
"status": "affected",
"version": "16.03.50.5"
},
{
"status": "affected",
"version": "16.03.50.6"
},
{
"status": "affected",
"version": "16.03.50.7"
},
{
"status": "affected",
"version": "16.03.50.8"
},
{
"status": "affected",
"version": "16.03.50.9"
},
{
"status": "affected",
"version": "16.03.50.10"
},
{
"status": "affected",
"version": "16.03.50.11"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "DigitalAndrew (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A weakness has been identified in Tenda AC8 up to 16.03.50.11. This vulnerability affects the function doSystemCmd of the file /goform/SysToolChangePwd of the component HTTP Endpoint. This manipulation of the argument local_2c causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 9.3,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 10,
"vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "Memory Corruption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-16T17:32:11.090Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-351212 | Tenda AC8 HTTP Endpoint SysToolChangePwd doSystemCmd stack-based overflow",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/?id.351212"
},
{
"name": "VDB-351212 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/?ctiid.351212"
},
{
"name": "Submit #771773 | Tenda AC8 V5 V16.03.50.11 Buffer Overflow",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/?submit.771773"
},
{
"tags": [
"exploit"
],
"url": "https://github.com/digitalandrew/tenda_ac8_v5/blob/main/CVE_Report_Tenda_AC8_SysToolChangePwd_BOF.md"
},
{
"tags": [
"product"
],
"url": "https://www.tenda.com.cn/"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-03-16T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-03-16T01:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-03-16T07:21:20.000Z",
"value": "VulDB entry last update"
}
],
"title": "Tenda AC8 HTTP Endpoint SysToolChangePwd doSystemCmd stack-based overflow"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-4254",
"datePublished": "2026-03-16T17:32:11.090Z",
"dateReserved": "2026-03-16T06:16:10.100Z",
"dateUpdated": "2026-03-16T18:29:35.800Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-42854 (GCVE-0-2026-42854)
Vulnerability from cvelistv5 – Published: 2026-05-12 21:56 – Updated: 2026-05-13 14:24
VLAI
Title
arduino-esp32: Stack buffer overflow in WebServer multipart boundary parsing leads to remote crash potential RCE
Summary
arduino-esp32 is an Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 microcontrollers. Prior to 3.3.8, the WebServer multipart form parser in arduino-esp32 allocates a Variable Length Array (VLA) on the stack whose size is derived from an attacker-controlled HTTP header field (Content-Type: multipart/form-data; boundary=...) without enforcing any length limit. Sending a boundary string longer than ~8000 characters overflows the 8192-byte task stack of the loopTask, causing a crash and potential remote code execution. This vulnerability is fixed in 3.3.8.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/espressif/arduino-esp32/securi… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| espressif | arduino-esp32 |
Affected:
< 3.3.8
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-42854",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-13T14:24:33.796662Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-13T14:24:52.597Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/espressif/arduino-esp32/security/advisories/GHSA-8cmm-3887-r32j"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "arduino-esp32",
"vendor": "espressif",
"versions": [
{
"status": "affected",
"version": "\u003c 3.3.8"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "arduino-esp32 is an Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 microcontrollers. Prior to 3.3.8, the WebServer multipart form parser in arduino-esp32 allocates a Variable Length Array (VLA) on the stack whose size is derived from an attacker-controlled HTTP header field (Content-Type: multipart/form-data; boundary=...) without enforcing any length limit. Sending a boundary string longer than ~8000 characters overflows the 8192-byte task stack of the loopTask, causing a crash and potential remote code execution. This vulnerability is fixed in 3.3.8."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "CWE-121: Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-12T21:56:33.437Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/espressif/arduino-esp32/security/advisories/GHSA-8cmm-3887-r32j",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/espressif/arduino-esp32/security/advisories/GHSA-8cmm-3887-r32j"
}
],
"source": {
"advisory": "GHSA-8cmm-3887-r32j",
"discovery": "UNKNOWN"
},
"title": "arduino-esp32: Stack buffer overflow in WebServer multipart boundary parsing leads to remote crash potential RCE"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-42854",
"datePublished": "2026-05-12T21:56:33.437Z",
"dateReserved": "2026-04-30T16:44:48.378Z",
"dateUpdated": "2026-05-13T14:24:52.597Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation ID: MIT-10
Phases: Operation, Build and Compilation
Strategy: Environment Hardening
Description:
- Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
- D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
Mitigation
Phase: Architecture and Design
Description:
- Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation
Phase: Implementation
Description:
- Implement and perform bounds checking on input.
Mitigation
Phase: Implementation
Description:
- Do not use dangerous functions such as gets. Use safer, equivalent functions which check for boundary errors.
Mitigation ID: MIT-11
Phases: Operation, Build and Compilation
Strategy: Environment Hardening
Description:
- Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
- Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
- For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
No CAPEC attack patterns related to this CWE.