Out-of-bounds write in Microsoft products - CVE-2026-96235
Published: October 14, 2026
Vulnerability identifier: #VU155435
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-96235
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to an out-of-bounds write in .NET when processing a specially crafted file. A remote attacker can trick a user into opening the crafted file to execute arbitrary code.
Affected software
.NET
Visual Studio
Microsoft .NET Framework
Visual Studio
Microsoft .NET Framework
How to mitigate CVE-2026-96235
Install security update from vendor's website.
.NET - addressed in versions 8.0.32, 9.0.21
Visual Studio - update to 17.14.42
Microsoft .NET Framework - update to 10.0.13
Visual Studio - update to 17.14.42
Microsoft .NET Framework - update to 10.0.13