CVE-2026-62871High· 7.8▾ TwilightOut-of-bounds write in .NET allows an unauthorized attacker to execute code locally.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Aug 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.4%
Last analysed / modified upstream
Out-of-bounds write in .NET allows an unauthorized attacker to execute code locally.
.net_8.0 >= 8.0.0 < 8.0.30.net_9.0 >= 9.0.0 < 9.0.19visual_studio_2022_version_17.14 >= 17.14.0 < 17.14.38visual_studio_2026_version_18.8 >= 18.0 < 18.8.3Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
Microsoft.WindowsDesktop.App.Runtime.win-arm64 >= 10.0.0, <= 10.0.10Microsoft.WindowsDesktop.App.Runtime.win-x64 >= 10.0.0, <= 10.0.10Microsoft.WindowsDesktop.App.Runtime.win-x86 >= 10.0.0, <= 10.0.10Microsoft.WindowsDesktop.App.Runtime.win-arm64 >= 9.0.0, <= 9.0.18Microsoft.WindowsDesktop.App.Runtime.win-x64 >= 9.0.0, <= 9.0.18Microsoft.WindowsDesktop.App.Runtime.win-x86 >= 9.0.0, <= 9.0.18Microsoft.WindowsDesktop.App.Runtime.win-arm64 >= 8.0.0, <= 8.0.29Microsoft.WindowsDesktop.App.Runtime.win-x64 >= 8.0.0, <= 8.0.29Microsoft.WindowsDesktop.App.Runtime.win-x86 >= 8.0.0, <= 8.0.29Patched in:
Microsoft.WindowsDesktop.App.Runtime.win-arm64 10.0.11Microsoft.WindowsDesktop.App.Runtime.win-x64 10.0.11Microsoft.WindowsDesktop.App.Runtime.win-x86 10.0.11Microsoft.WindowsDesktop.App.Runtime.win-arm64 9.0.19Microsoft.WindowsDesktop.App.Runtime.win-x64 9.0.19Microsoft.WindowsDesktop.App.Runtime.win-x86 9.0.19Microsoft.WindowsDesktop.App.Runtime.win-arm64 8.0.30Microsoft.WindowsDesktop.App.Runtime.win-x64 8.0.30Microsoft.WindowsDesktop.App.Runtime.win-x86 8.0.30Connected by shared product, vendor, weakness, or advisory.
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