CVE-2026-50303
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk10th percentile - higher than 10% of all known CVEs
Summary
Use of a cryptographic primitive with a risky implementation in Windows Key Guard allows an authorized attacker to bypass a security feature locally.
Risk Assessment
An authorized user can bypass key protection, potentially leading to theft of credentials or encryption keys.
Recommendation
Install the latest Windows security updates that fix the cryptographic implementation.
Other vulnerabilities in Windows Key Guard
See all- CVE-2026-66799High
Heap-based buffer overflow in Windows Key Guard allows an authorized attacker to elevate privileges locally.
- CVE-2026-50378High
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Key Guard allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
Use of a cryptographic primitive with a risky implementation in Windows Key Guard allows an authorized attacker to bypass a security feature locally.