CVE-2026-96233ASP.NET Core Denial of Service Vulnerability
- 7.5HighCVSS base score
- 0.99%Exploitation in 30 daysEPSS · top 37% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Out-of-bounds write in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Timeline
ID reserved
By microsoft
- 21 days later
· 21 days later
Published
- 28 days later
· 28 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| microsoftCNA (assigner) | 3.1 | High7.5 | 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 |
| NVDNVD · Awaiting Analysis | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.99% · top 37% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
- affected 10.0.0 – < 10.0.13
- affected 11.0.0 – < 11.0.0-rc.2
- affected 8.0.0 – < 8.0.32
- affected 9.0.0 – < 9.0.21
Microsoft · Microsoft .NET Framework 3.5
- affected 3.5.0 – < 2.0.50727.9188 AND 3.0.30729.9171
Microsoft · Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2
- affected 3.0.0.0 – < 2.0.50727.8987 AND 3.0.30729.8982 AND 4.7.4150.0
Microsoft · Microsoft .NET Framework 3.5 AND 4.7.2
- affected 4.7.0 – < 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0
Microsoft · Microsoft .NET Framework 3.5 AND 4.8
- affected 4.8.0 – < 2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0
Microsoft · Microsoft .NET Framework 3.5 AND 4.8.1
- affected 4.8.1 – < 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0
Microsoft · Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
- affected 4.7.0 – < 4.7.4150.0
Microsoft · Microsoft .NET Framework 4.8
- affected 4.8.0 – < 4.8.4811.0
Microsoft · Microsoft .NET Framework 4.8.1
- affected 4.8.0.0 – < 4.8.9363.0
Affected packages
Affected packages12
From reviewed advisories of the GitHub Advisory Database.
- NuGetMicrosoft.NETCore.App.Runtime.linux-armGHSA-87vj-4hqv-22p9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.linux-arm64GHSA-87vj-4hqv-22p9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.linux-musl-armGHSA-87vj-4hqv-22p9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.linux-musl-arm64GHSA-87vj-4hqv-22p9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.linux-musl-x64GHSA-87vj-4hqv-22p9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.linux-x64GHSA-87vj-4hqv-22p9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.osx-arm64GHSA-87vj-4hqv-22p9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.osx-x64GHSA-87vj-4hqv-22p9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.win-armGHSA-87vj-4hqv-22p9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.win-arm64GHSA-87vj-4hqv-22p9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.win-x64GHSA-87vj-4hqv-22p9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.win-x86GHSA-87vj-4hqv-22p9 (opens in a new tab)
References
References1
- ASP.NET Core Denial of Service Vulnerability (opens in a new tab)vendor-advisorypatch
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-100203 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-87vj-4hqv-22p9 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-96233)Record last updated .