Heap-based buffer overflow in Microsoft products - CVE-2026-32177
Published: May 13, 2026
Vulnerability identifier: #VU131324
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-32177
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Microsoft .NET Framework
.NET
Visual Studio
Microsoft .NET Framework
.NET
Visual Studio
Detailed vulnerability description
The vulnerability allows a local attacker to escalate privileges on the target system.
The vulnerability exists due to a boundary error in .NET. A local attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and gain elevated privileges on the system.
How to mitigate CVE-2026-32177
Install updates from vendor's website.