Weak Authentication in Configuration Manager - CVE-2026-119991
Published: November 11, 2026
Vulnerability identifier: #VU165428
CSH Severity: Medium
CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-119991
CWE-ID: CWE-1390
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose file content without authorization.
The vulnerability exists due to weak authentication in Microsoft Configuration Manager when handling network requests. A remote attacker can exploit this weakness under specific protocol or configuration conditions to access file content without authorization.
Affected software
Configuration Manager
How to mitigate CVE-2026-119991
Install security update from vendor's website.
Configuration Manager - update to 5.0.9146.1045