SB20260414164 - Information disclosure in Microsoft Local Security Authority Subsystem Service
Published: April 14, 2026
Security Bulletin ID
SB20260414164
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 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2026-26155)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in Microsoft Local Security Authority Subsystem Service. A remote user can trigger an out-of-bounds read error and read contents of memory on the system.
Remediation
Install update from vendor's website.