SB2025070880 - Heap-based buffer overflow in Microsoft Credential Security Support Provider Protocol (CredSSP)
Published: July 8, 2025
Security Bulletin ID
SB2025070880
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 security vulnerability.
1) Heap-based buffer overflow (CVE-ID: CVE-2025-47987)
The vulnerability allows a local user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Credential Security Support Provider Protocol (CredSSP). A local user can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system with elevated privileges.
Remediation
Install update from vendor's website.