GHSA-92f5-vc22-8j33CriticalCVSS 9.8
Microsoft QUIC: Remote Code Execution Vulnerability
🔗 CVE IDs covered (1)
📋 Description
Summary
Use after free in Microsoft QUIC allows an unauthorized attacker to execute code over a network.
Details
New network path creations and removals triggered by incoming packets can lead to a pointer invalidation.
Patches
- Guard path promotion e0f55b5
Impact
An unauthenticated attacker could exploit this vulnerability by sending a specially crafted packet to an affected service over the network. Successful exploitation could allow the attacker to execute code on the target system. No authentication or user interaction is required.
🎯 Affected products4
- nuget/Microsoft.Native.Quic.MsQuic.OpenSSL:>= 2.5.3, < 2.5.10
- nuget/Microsoft.Native.Quic.MsQuic.Schannel:>= 2.5.3, < 2.5.10
- nuget/Microsoft.Native.Quic.MsQuic.OpenSSL:< 2.4.19
- nuget/Microsoft.Native.Quic.MsQuic.Schannel:< 2.4.19
🔗 References (12)
- https://github.com/microsoft/msquic/security/advisories/GHSA-92f5-vc22-8j33
- https://nvd.nist.gov/vuln/detail/CVE-2026-62815
- https://github.com/microsoft/msquic/pull/6217
- https://github.com/microsoft/msquic/pull/6219
- https://github.com/microsoft/msquic/pull/6220
- https://github.com/microsoft/msquic/commit/583e7d5b509bb0bfa3518482d98879b6eda41ad0
- https://github.com/microsoft/msquic/commit/9ff06b71fd4b4d5258361598ada5b24cbc1beb20
- https://github.com/microsoft/msquic/commit/e0f55b5fdc9fff0b4465976d066ebd22fb7e2b3b
- https://github.com/microsoft/msquic/releases/tag/v2.4.19
- https://github.com/microsoft/msquic/releases/tag/v2.5.10
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62815
- https://github.com/advisories/GHSA-92f5-vc22-8j33