CVE-2023-21809
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk46th percentile - higher than 46% of all known CVEs
Summary
Security feature bypass vulnerability in Microsoft Defender for Endpoint.
Risk Assessment
An attacker could bypass security features, potentially allowing unauthorized access or malware activity.
Recommendation
Install the latest security updates 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-2026-45647Medium
Microsoft Defender for Endpoint has a time-of-check time-of-use (TOCTOU) race condition vulnerability. An authorized attacker can elevate privileges locally.
Original NVD description (English source)
Microsoft Defender for Endpoint Security Feature Bypass Vulnerability