SB2025051386 - Denial of service in Microsoft Web Threat Defense (WTD.sys)
Published: May 13, 2025
Security Bulletin ID
SB2025051386
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
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-2025-29971)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in Web Threat Defense (WTD.sys). A remote attacker can trigger an out-of-bounds read error and cause a denial of service condition on the system.
Remediation
Install update from vendor's website.