Protection mechanism failure in Microsoft products - CVE-2026-50646
Published: July 17, 2026
Vulnerability identifier: #VU138082
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-50646
CWE-ID: CWE-693
Exploitation vector: Local 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 execute arbitrary code.
The vulnerability exists due to protection mechanism failure in .NET Framework when processing crafted local input. A local attacker can provide crafted local input to execute arbitrary code.
How to mitigate CVE-2026-50646
Install security update from vendor's website.