SB2026061251 - Protection Mechanism Failure in Microsoft Windows Mark of the Web
Published: June 12, 2026
Security Bulletin ID
SB2026061251
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Protection Mechanism Failure (CVE-ID: CVE-2026-45595)
CWE-ID: CWE-693 - Protection Mechanism Failure
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient implementation of security measures in Windows Mark of the Web. A remote attacker can use a specially crafted file and bypass a security feature.
Remediation
Install update from vendor's website.