SB20250709117 - Protection Mechanism Failure in Microsoft Windows SmartScreen
Published: July 9, 2025
Security Bulletin ID
SB20250709117
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Protection Mechanism Failure (CVE-ID: CVE-2025-49740)
CWE-ID: CWE-693 - Protection Mechanism Failure
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient implementation of security measures in Windows SmartScreen. A remote attacker can trick a victim to launch malicious files and evade Mark of the Web (MOTW) defenses.
Remediation
Install update from vendor's website.