Microsoft Security Advisory CVE-2026-47304 – .NET Security Feature Bypass Vulnerability

Summary

Microsoft Security Advisory CVE-2026-47304 – .NET Security Feature Bypass Vulnerability

Why it matters

GitHub has published a reviewed security advisory for System.Security.Cryptography.Xml. Prioritize it with other application dependency updates, especially because EPSS places it in the 10% percentile.

Operator check

Check whether System.Security.Cryptography.Xml is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. EPSS probability: 0.2%; percentile: 10%.

Sources