CVE-2026-45647
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk12th percentile - higher than 12% of all known CVEs
Summary
Microsoft Defender for Endpoint has a time-of-check time-of-use (TOCTOU) race condition vulnerability. An authorized attacker can elevate privileges locally.
Risk Assessment
An attacker can gain elevated privileges on the system, potentially leading to full device compromise.
Recommendation
Apply security updates from Microsoft for Microsoft Defender for Endpoint.
Other vulnerabilities in Microsoft Defender for Endpoint
See all- CVE-2026-54123Medium
Exposure of sensitive information to an unauthorized actor in Microsoft Defender for Endpoint allows an authorized attacker to disclose information locally.
- CVE-2026-56178Medium
Microsoft Defender for Endpoint contains a time-of-check time-of-use (TOCTOU) race condition vulnerability that allows an authorized attacker to elevate privileges locally.
- CVE-2023-21809High
Security feature bypass vulnerability in Microsoft Defender for Endpoint.
Original NVD description (English source)
Time-of-check time-of-use (toctou) race condition in Microsoft Defender for Endpoint allows an authorized attacker to elevate privileges locally.