Microsoft QUIC: Remote Code Execution Vulnerability
Critical vendor advisory
CVE-2026-62815
Summary
Microsoft QUIC: Remote Code Execution Vulnerability
Why it matters
GitHub has published a reviewed security advisory for Microsoft.Native.Quic.MsQuic.OpenSSL. Prioritize it with other application dependency updates, especially because EPSS places it in the 60% percentile.
Operator check
Check whether Microsoft.Native.Quic.MsQuic.OpenSSL is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 10.0. EPSS probability: 1.0%; percentile: 60%.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.