High severity7.8NVD Advisory· Published Aug 11, 2026· Updated Aug 13, 2026
CVE-2026-62871
CVE-2026-62871
Description
Out-of-bounds write in .NET allows an unauthorized attacker to execute code locally.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
Microsoft.WindowsDesktop.App.Runtime.win-arm64NuGet | >= 10.0.0, < 10.0.11 | 10.0.11 |
Microsoft.WindowsDesktop.App.Runtime.win-x64NuGet | >= 10.0.0, < 10.0.11 | 10.0.11 |
Microsoft.WindowsDesktop.App.Runtime.win-x86NuGet | >= 10.0.0, < 10.0.11 | 10.0.11 |
Microsoft.WindowsDesktop.App.Runtime.win-arm64NuGet | >= 9.0.0, < 9.0.19 | 9.0.19 |
Microsoft.WindowsDesktop.App.Runtime.win-x64NuGet | >= 9.0.0, < 9.0.19 | 9.0.19 |
Microsoft.WindowsDesktop.App.Runtime.win-x86NuGet | >= 9.0.0, < 9.0.19 | 9.0.19 |
Microsoft.WindowsDesktop.App.Runtime.win-arm64NuGet | >= 8.0.0, < 8.0.30 | 8.0.30 |
Microsoft.WindowsDesktop.App.Runtime.win-x64NuGet | >= 8.0.0, < 8.0.30 | 8.0.30 |
Microsoft.WindowsDesktop.App.Runtime.win-x86NuGet | >= 8.0.0, < 8.0.30 | 8.0.30 |
Affected products
6- osv-coords2 versions
>= 8.0.0, < 8.0.30+ 1 more
- (no CPE)range: >= 8.0.0, < 8.0.30
- (no CPE)range: >= 8.0.0, < 8.0.30
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*range: >=17.14.0,<17.14.38
- cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:*range: >=18.8.0,<18.8.3
Patches
Vulnerability mechanics
References
5- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62871nvdPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-vg44-h755-9hw7ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-62871ghsaADVISORY
- github.com/dotnet/announcements/issues/431ghsaWEB
- github.com/dotnet/wpf/security/advisories/GHSA-vg44-h755-9hw7ghsaWEB
News mentions
2- Patch Tuesday - August 2026Rapid7 Blog · Aug 11, 2026
- Microsoft Patch Tuesday Update August 2026 – 394 Vulnerabilities Fixed, Including 3 Zero-DaysCyber Security News · Aug 11, 2026