SB20260415143 - Privilege escalation in Microsoft Windows Installer
Published: April 15, 2026
Security Bulletin ID
SB20260415143
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 Handling of Insufficient Permissions or Privileges (CVE-ID: CVE-2026-27910)
CWE-ID: CWE-280 - Improper Handling of Insufficient Permissions or Privileges
CVSSv4: 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/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the target system.
The vulnerability exists due to improper handling of insufficient permissions or privileges in Windows Installer. A local user can gain elevated privileges on the system.
Remediation
Install update from vendor's website.