CVE-2026-62897: Microsoft Security Advisory CVE-2026-62897 – .NET Remote Code Execution Vulnerability

August 11, 2026

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

An integer overflow or wraparound in .NET allows an unauthorized attacker to execute code locally.

References

github.com/advisories/GHSA-fx4q-gjrx-2jw6
github.com/dotnet/announcements/issues/434
github.com/dotnet/wpf/security/advisories/GHSA-fx4q-gjrx-2jw6
msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62897
nvd.nist.gov/vuln/detail/CVE-2026-62897

Code Behaviors & Features

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