SB20261111113 - Weak Authentication in Configuration Manager
Published: November 11, 2026
Security Bulletin ID
SB20261111113
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Weak Authentication (CVE-ID: CVE-2026-119991)
CWE-ID: CWE-1390 - Weak Authentication
CVSSv4: 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]
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.
Remediation
Install update from vendor's website.