SB20261111126 - Improper privilege management in kernel-mshv
Published: November 11, 2026
Security Bulletin ID
SB20261111126
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper privilege management (CVE-ID: CVE-2026-122986)
CWE-ID: CWE-269 - Improper Privilege Management
CVSSv4: 8.5 [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]
The vulnerability allows a local user to escalate privileges on the local system.
The vulnerability exists due to improper privilege management in Microsoft Azure Kubernetes Service when managing local privileges. A local user can exploit incorrect privilege handling to gain elevated permissions on the local system.
Remediation
Install update from vendor's website.