SB2026041581 - Information disclosure in Microsoft Windows COM Server
Published: April 15, 2026
Security Bulletin ID
SB2026041581
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Type Confusion (CVE-ID: CVE-2026-20806)
CWE-ID: CWE-843 - Type confusion
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to compromise the target system.
The vulnerability exists due to a type confusion error in Windows COM Server. A local user can pass specially crafted data to the application, trigger a type confusion error and gain access to sensitive information on the target system.
Remediation
Install update from vendor's website.