Incorrect authorization in Microsoft .NET Framework - CVE-2026-62872
Published: August 12, 2026
Vulnerability identifier: #VU141925
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-62872
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to elevate privileges.
The vulnerability exists due to incorrect authorization in .NET Framework when handling network requests. A remote user can send crafted requests to elevate privileges.
A successful exploit would grant the rights of the user running the affected application.
Affected software
Microsoft .NET Framework
How to mitigate CVE-2026-62872
Install security update from vendor's website.
Microsoft .NET Framework - addressed in versions 2.0.50727.8984 & 3.0.30729.8980, 2.0.50727.8984 & 3.0.30729.8980 & 4.7.4144.0, 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4144.0, 2.0.50727.9070 & 3.0.30729.9068 & 4.8.4805.0, 2.0.50727.9183 & 3.0.30729.9169 & 4.8.4805.0, 2.0.50727.9183 & 3.0.30729.9169 & 4.8.9343.0, 2.0.50727.9183 & 3.0.30729.9169 & 4.8.9344.0, 4.7.4144.0, 4.8.4805.0