CVE-2025-26682 (GCVE-0-2025-26682)
Vulnerability from cvelistv5 – Published: 2025-04-08 17:24 – Updated: 2026-08-10 15:13
VLAI
EPSS
VEX
Title
ASP.NET Core and Visual Studio Denial of Service Vulnerability
Summary
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-08 17:33 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
6 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Microsoft | ASP.NET Core 8.0 |
Affected:
8.0 , < 8.0.15
(custom)
|
guessed | |
| Microsoft | ASP.NET Core 9.0 |
Affected:
9.0 , < 9.0.4
(custom)
|
guessed | |
| Microsoft | Microsoft Visual Studio 2022 version 17.10 |
Affected:
17.10.0 , < 17.10.13
(custom)
|
guessed | |
| Microsoft | Microsoft Visual Studio 2022 version 17.12 |
Affected:
17.12.0 , < 17.12.7
(custom)
|
guessed | |
| Microsoft | Microsoft Visual Studio 2022 version 17.13 |
Affected:
17.13.0 , < 17.13.6
(custom)
|
guessed | |
| Microsoft | Microsoft Visual Studio 2022 version 17.8 |
Affected:
17.8.0 , < 17.8.20
(custom)
|
guessed |
Date Public
2025-04-08 07:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-26682",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-08T17:33:33.003391Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-04-08T17:33:49.130Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "ASP.NET Core 8.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "8.0.15",
"status": "affected",
"version": "8.0",
"versionType": "custom"
}
]
},
{
"product": "ASP.NET Core 9.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "9.0.4",
"status": "affected",
"version": "9.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Visual Studio 2022 version 17.10",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "17.10.13",
"status": "affected",
"version": "17.10.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Visual Studio 2022 version 17.12",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "17.12.7",
"status": "affected",
"version": "17.12.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Visual Studio 2022 version 17.13",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "17.13.6",
"status": "affected",
"version": "17.13.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Visual Studio 2022 version 17.8",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "17.8.20",
"status": "affected",
"version": "17.8.0",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*",
"versionEndExcluding": "8.0.15",
"versionStartIncluding": "8.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*",
"versionEndExcluding": "17.12.7",
"versionStartIncluding": "17.12.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*",
"versionEndExcluding": "17.13.6",
"versionStartIncluding": "17.13.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*",
"versionEndExcluding": "17.8.20",
"versionStartIncluding": "17.8.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*",
"versionEndExcluding": "17.10.13",
"versionStartIncluding": "17.10.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*",
"versionEndExcluding": "9.0.4",
"versionStartIncluding": "9.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"datePublic": "2025-04-08T07:00:00.000Z",
"descriptions": [
{
"lang": "en-US",
"value": "Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-10T15:13:20.349Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"name": "ASP.NET Core and Visual Studio Denial of Service Vulnerability",
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26682"
}
],
"title": "ASP.NET Core and Visual Studio Denial of Service Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2025-26682",
"datePublished": "2025-04-08T17:24:22.748Z",
"dateReserved": "2025-02-12T22:35:41.551Z",
"dateUpdated": "2026-08-10T15:13:20.349Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-26682",
"date": "2026-09-22",
"epss": "0.01672",
"percentile": "0.75795"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "ASP.NET Core 8.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "8.0.15",
"status": "affected",
"version": "8.0",
"versionType": "custom"
}
]
},
{
"product": "ASP.NET Core 9.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "9.0.4",
"status": "affected",
"version": "9.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Visual Studio 2022 version 17.10",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "17.10.13",
"status": "affected",
"version": "17.10.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Visual Studio 2022 version 17.12",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "17.12.7",
"status": "affected",
"version": "17.12.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Visual Studio 2022 version 17.13",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "17.13.6",
"status": "affected",
"version": "17.13.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Visual Studio 2022 version 17.8",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "17.8.20",
"status": "affected",
"version": "17.8.0",
"versionType": "custom"
}
]
}
],
"source": "secure@microsoft.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B88AC3B2-D1DF-4FBE-8368-08FAA751FB9E",
"versionEndExcluding": "8.0.15",
"versionStartIncluding": "8.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*",
"matchCriteriaId": "88CF94BA-45FD-40CF-9814-DDBF5E289559",
"versionEndExcluding": "9.0.4",
"versionStartIncluding": "9.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*",
"matchCriteriaId": "721FAAC5-CAF7-4741-AD98-7DA1E244CE93",
"versionEndExcluding": "17.8.20",
"versionStartIncluding": "17.8.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B8A53B16-AC32-4943-9532-5CA70A543A09",
"versionEndExcluding": "17.10.13",
"versionStartIncluding": "17.10.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C403B4A3-41D8-454A-80F6-2DC9F31BE427",
"versionEndExcluding": "17.12.7",
"versionStartIncluding": "17.12.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*",
"matchCriteriaId": "3093F62C-597E-47AA-9BE5-6FD2D5E98810",
"versionEndExcluding": "17.13.6",
"versionStartIncluding": "17.13.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network."
},
{
"lang": "es",
"value": "La asignaci\u00f3n de recursos sin l\u00edmites ni limitaciones en ASP.NET Core permite que un atacante no autorizado deniegue el servicio a trav\u00e9s de una red."
}
],
"id": "CVE-2025-26682",
"lastModified": "2026-06-17T09:02:16.770",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"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"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "secure@microsoft.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-26682",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-08T17:33:33.003391Z",
"version": "2.0.3"
}
}
]
},
"published": "2025-04-08T18:15:53.033",
"references": [
{
"source": "secure@microsoft.com",
"tags": [
"Vendor Advisory"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26682"
}
],
"sourceIdentifier": "secure@microsoft.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-770"
}
],
"source": "secure@microsoft.com",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2026-07-03T10:45:38+00:00",
"cve": "CVE-2025-26682",
"id": "CVE-2025-26682",
"initial_release_date": "2025-04-08T16:00:00+00:00",
"product_status:known_affected": "22",
"product_status:known_not_affected": "86",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "dotnet: .NET: ASP.NET Core denial of service with HTTP/3",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-26682.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-26682",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-08T17:33:33.003391Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-04-08T17:33:38.691Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"platforms": [
"Unknown"
],
"product": "ASP.NET Core 8.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "8.0.15",
"status": "affected",
"version": "8.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"Unknown"
],
"product": "Microsoft Visual Studio 2022 version 17.12",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "17.12.7",
"status": "affected",
"version": "17.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"Unknown"
],
"product": "Microsoft Visual Studio 2022 version 17.13",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "17.13.6",
"status": "affected",
"version": "17.10",
"versionType": "custom"
}
]
},
{
"platforms": [
"Unknown"
],
"product": "Microsoft Visual Studio 2022 version 17.8",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "17.8.20",
"status": "affected",
"version": "17.8.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"Unknown"
],
"product": "Microsoft Visual Studio 2022 version 17.10",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "17.10.13",
"status": "affected",
"version": "17.10",
"versionType": "custom"
}
]
},
{
"platforms": [
"Unknown"
],
"product": "ASP.NET Core 9.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "9.0.4",
"status": "affected",
"version": "9.0",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*",
"versionEndExcluding": "8.0.15",
"versionStartIncluding": "8.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:visual_studio:*:*:*:*:*:*:*:*",
"versionEndExcluding": "17.12.7",
"versionStartIncluding": "17.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:visual_studio:*:*:*:*:*:*:*:*",
"versionEndExcluding": "17.13.6",
"versionStartIncluding": "17.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:visual_studio:*:*:*:*:*:*:*:*",
"versionEndExcluding": "17.8.20",
"versionStartIncluding": "17.8.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:visual_studio:*:*:*:*:*:*:*:*",
"versionEndExcluding": "17.10.13",
"versionStartIncluding": "17.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*",
"versionEndExcluding": "9.0.4",
"versionStartIncluding": "9.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"datePublic": "2025-04-08T07:00:00.000Z",
"descriptions": [
{
"lang": "en-US",
"value": "Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-06-04T17:53:37.082Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"name": "ASP.NET Core and Visual Studio Denial of Service Vulnerability",
"tags": [
"vendor-advisory"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26682"
}
],
"title": "ASP.NET Core and Visual Studio Denial of Service Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2025-26682",
"datePublished": "2025-04-08T17:24:22.748Z",
"dateReserved": "2025-02-12T22:35:41.551Z",
"dateUpdated": "2025-06-04T17:53:37.082Z",
"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…