CVE-2026-69522: Microsoft Security Advisory CVE-2026-69522 – .NET and Visual Studio Remote Code Execution Vulnerability

September 9, 2026

Microsoft is releasing this security advisory to provide information about a vulnerability in Microsoft.DiaSymReader.Native. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

An out of bounds write can occur when processing PDB files.

References

github.com/advisories/GHSA-2j8r-3c22-8565
github.com/dotnet/runtime/security/advisories/GHSA-2j8r-3c22-8565
nvd.nist.gov/vuln/detail/CVE-2026-69522
nvd.nist.gov/vuln/detail/cve-2026-69522

Code Behaviors & Features

Detect and mitigate CVE-2026-69522 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →