CVE-2026-105016 ยท GHSA-5gjq-3f94-rcf7
Microsoft Security Advisory CVE-2026-105016 - Microsoft QUIC Remote Code Execution Vulnerability
- Risk score
- 81/100
- CVSS
- 9.8 v3.1
- Exploit chance (30 days)
- 1.0%
- Published
- 13 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network.
- Affected
- Microsoft.Native.Quic.MsQuic.Schannel (nuget) = 2.5.11-ci.156755675
- Fix
- Upgrade Microsoft.Native.Quic.MsQuic.Schannel to 2.5.11-ci.159417053 or later.
- Exploitation
- No known exploitation
Why it is Red
- CVSS 9.8 critical
- Remotely exploitable without logging in
- On your watchlist: NuGet
Affected packages
| Package | Ecosystem | Vulnerable | Fixed in |
|---|---|---|---|
| Microsoft.Native.Quic.MsQuic.Schannel | nuget | = 2.5.11-ci.156755675 | 2.5.11-ci.159417053 |
References
- https://github.com/advisories/GHSA-5gjq-3f94-rcf7
- https://github.com/dotnet/runtime/security/advisories/GHSA-5gjq-3f94-rcf7
- https://github.com/dotnet/announcements/issues/446
- https://github.com/dotnet/runtime/issues/135695
- https://github.com/advisories/GHSA-5gjq-3f94-rcf7
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105016
Original description
Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network.
Last activity 13 Oct 2026. Patch Forecast updates every hour.