CVE-2021-26093 (GCVE-0-2021-26093)
Vulnerability from cvelistv5 – Published: 2024-12-19 07:47 – Updated: 2024-12-20 17:41
VLAI
EPSS
VEX
Summary
An access of uninitialized pointer (CWE-824) vulnerability in FortiWLC versions 8.6.0, 8.5.3 and earlier may allow a local and authenticated attacker to crash the access point being managed by the controller by executing a crafted CLI command.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-12-20 16:45 UTC
CWE
- CWE-824 - Denial of service
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Fortinet | FortiWLC |
Affected:
8.6.0
Affected: 8.5.0 , ≤ 8.5.3 (semver) Affected: 8.4.4 , ≤ 8.4.8 (semver) Affected: 8.4.0 , ≤ 8.4.2 (semver) Affected: 8.3.0 , ≤ 8.3.3 (semver) Affected: 8.2.4 , ≤ 8.2.7 (semver) Affected: 8.1.2 , ≤ 8.1.3 (semver) Affected: 8.0.6 cpe:2.3:a:fortinet:fortiwlc:8.6.0:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.5.3:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.5.2:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.5.1:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.5.0:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.4.8:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.4.7:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.4.6:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.4.5:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.4.4:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.4.2:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.4.1:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.4.0:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.3.3:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.3.2:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.3.1:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.3.0:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.2.7:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.2.6:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.2.5:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.2.4:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.1.3:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.1.2:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortiwlc:8.0.6:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-26093",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-12-20T16:45:09.690266Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-12-20T17:41:17.833Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:fortinet:fortiwlc:8.6.0:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.5.3:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.5.2:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.5.1:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.5.0:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.8:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.7:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.6:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.5:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.4:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.2:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.1:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.0:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.3.3:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.3.2:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.3.1:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.3.0:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.2.7:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.2.6:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.2.5:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.2.4:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.1.3:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.1.2:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.0.6:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"product": "FortiWLC",
"vendor": "Fortinet",
"versions": [
{
"status": "affected",
"version": "8.6.0"
},
{
"lessThanOrEqual": "8.5.3",
"status": "affected",
"version": "8.5.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.4.8",
"status": "affected",
"version": "8.4.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.4.2",
"status": "affected",
"version": "8.4.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.3.3",
"status": "affected",
"version": "8.3.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.2.7",
"status": "affected",
"version": "8.2.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.1.3",
"status": "affected",
"version": "8.1.2",
"versionType": "semver"
},
{
"status": "affected",
"version": "8.0.6"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An access of uninitialized pointer (CWE-824) vulnerability\u00a0in FortiWLC versions 8.6.0, 8.5.3 and earlier may allow a local and authenticated attacker to crash the access point\u00a0being managed by the controller by executing a crafted CLI command."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.6,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H/E:P/RL:X/RC:R",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-824",
"description": "Denial of service",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-12-19T07:47:44.394Z",
"orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
"shortName": "fortinet"
},
"references": [
{
"name": "https://fortiguard.com/psirt/FG-IR-21-002",
"url": "https://fortiguard.com/psirt/FG-IR-21-002"
}
],
"solutions": [
{
"lang": "en",
"value": "Please upgrade to FortiWLC version 8.6.3 or above."
}
]
}
},
"cveMetadata": {
"assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
"assignerShortName": "fortinet",
"cveId": "CVE-2021-26093",
"datePublished": "2024-12-19T07:47:44.394Z",
"dateReserved": "2021-01-25T14:47:15.093Z",
"dateUpdated": "2024-12-20T17:41:17.833Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2021-26093",
"date": "2026-09-22",
"epss": "0.0016",
"percentile": "0.05592"
},
"fkie_nvd": {
"descriptions": [
{
"lang": "en",
"value": "An access of uninitialized pointer (CWE-824) vulnerability\u00a0in FortiWLC versions 8.6.0, 8.5.3 and earlier may allow a local and authenticated attacker to crash the access point\u00a0being managed by the controller by executing a crafted CLI command."
},
{
"lang": "es",
"value": "Una vulnerabilidad de acceso a un puntero no inicializado (CWE-824) en FortiWLC versiones 8.6.0, 8.5.3 y anteriores puede permitir que un atacante local y autenticado bloquee el punto de acceso administrado por el controlador mediante la ejecuci\u00f3n de un comando CLI manipulado espec\u00edficamente."
}
],
"id": "CVE-2021-26093",
"lastModified": "2024-12-19T08:15:14.717",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.0,
"impactScore": 4.7,
"source": "psirt@fortinet.com",
"type": "Secondary"
}
]
},
"published": "2024-12-19T08:15:14.717",
"references": [
{
"source": "psirt@fortinet.com",
"url": "https://fortiguard.com/psirt/FG-IR-21-002"
}
],
"sourceIdentifier": "psirt@fortinet.com",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-824"
}
],
"source": "psirt@fortinet.com",
"type": "Primary"
}
]
},
"nvd": {
"cve": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:fortinet:fortiwlc:*:*:*:*:*:*:*:*",
"matchCriteriaId": "860117DD-3D1F-4460-8A21-F51509DDB67B",
"versionEndExcluding": "8.6.3",
"versionStartIncluding": "8.0.6",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "An access of uninitialized pointer (CWE-824) vulnerability\u00a0in FortiWLC versions 8.6.0, 8.5.3 and earlier may allow a local and authenticated attacker to crash the access point\u00a0being managed by the controller by executing a crafted CLI command."
},
{
"lang": "es",
"value": "Una vulnerabilidad de acceso a un puntero no inicializado (CWE-824) en FortiWLC versiones 8.6.0, 8.5.3 y anteriores puede permitir que un atacante local y autenticado bloquee el punto de acceso administrado por el controlador mediante la ejecuci\u00f3n de un comando CLI manipulado espec\u00edficamente."
}
],
"id": "CVE-2021-26093",
"lastModified": "2025-01-21T20:44:31.650",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.0,
"impactScore": 4.7,
"source": "psirt@fortinet.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.0,
"impactScore": 4.0,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2024-12-19T08:15:14.717",
"references": [
{
"source": "psirt@fortinet.com",
"tags": [
"Vendor Advisory"
],
"url": "https://fortiguard.com/psirt/FG-IR-21-002"
}
],
"sourceIdentifier": "psirt@fortinet.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-824"
}
],
"source": "psirt@fortinet.com",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-05-29T03:19:45+00:00",
"cve": "CVE-2021-26093",
"id": "CVE-2021-26093",
"initial_release_date": "2021-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2021-26093",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-26093.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-26093",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-12-20T16:45:09.690266Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-12-20T16:45:59.303Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:fortinet:fortiwlc:8.6.0:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.5.3:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.5.2:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.5.1:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.5.0:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.8:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.7:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.6:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.5:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.4:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.2:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.1:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.0:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.3.3:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.3.2:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.3.1:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.3.0:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.2.7:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.2.6:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.2.5:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.2.4:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.1.3:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.1.2:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.0.6:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"product": "FortiWLC",
"vendor": "Fortinet",
"versions": [
{
"status": "affected",
"version": "8.6.0"
},
{
"lessThanOrEqual": "8.5.3",
"status": "affected",
"version": "8.5.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.4.8",
"status": "affected",
"version": "8.4.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.4.2",
"status": "affected",
"version": "8.4.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.3.3",
"status": "affected",
"version": "8.3.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.2.7",
"status": "affected",
"version": "8.2.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.1.3",
"status": "affected",
"version": "8.1.2",
"versionType": "semver"
},
{
"status": "affected",
"version": "8.0.6"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An access of uninitialized pointer (CWE-824) vulnerability\u00a0in FortiWLC versions 8.6.0, 8.5.3 and earlier may allow a local and authenticated attacker to crash the access point\u00a0being managed by the controller by executing a crafted CLI command."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.6,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H/E:P/RL:X/RC:R",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-824",
"description": "Denial of service",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-12-19T07:47:44.394Z",
"orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
"shortName": "fortinet"
},
"references": [
{
"name": "https://fortiguard.com/psirt/FG-IR-21-002",
"url": "https://fortiguard.com/psirt/FG-IR-21-002"
}
],
"solutions": [
{
"lang": "en",
"value": "Please upgrade to FortiWLC version 8.6.3 or above."
}
]
}
},
"cveMetadata": {
"assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
"assignerShortName": "fortinet",
"cveId": "CVE-2021-26093",
"datePublished": "2024-12-19T07:47:44.394Z",
"dateReserved": "2021-01-25T14:47:15.093Z",
"dateUpdated": "2024-12-20T17:41:17.833Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…