CVE-2021-34466
MediumCVSS 5.7Exploitation Probability (EPSS)
Low risk48th percentile - higher than 48% of all known CVEs
Summary
A vulnerability in Windows Hello allows a security feature bypass. An attacker could exploit this flaw to bypass authentication mechanisms.
Risk Assessment
The risk is the potential bypass of biometric authentication, which could lead to unauthorized access.
Recommendation
It is recommended to apply Windows security updates to prevent bypassing Windows Hello features.
Other vulnerabilities in Windows Hello
See all- CVE-2026-81354High
Heap-based buffer overflow in Windows Hello allows an authorized attacker to elevate privileges locally.
- CVE-2026-72980Medium
An uncontrolled search path element in Windows Hello allows an authorized attacker to bypass a security feature locally.
- CVE-2026-69864High
A use-after-free vulnerability in Windows Hello allows an authorized attacker to elevate privileges locally.
- CVE-2026-69820High
Heap-based buffer overflow in Windows Hello allows an authorized attacker to elevate privileges locally.
- CVE-2026-69799High
A race condition in Windows Hello allows an authorized attacker to elevate privileges locally.
- CVE-2026-69784High
Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.
- CVE-2026-69740High
Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.
- CVE-2026-69725High
Double free in Windows Hello allows an authorized attacker to elevate privileges locally.
- CVE-2026-69710High
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Hello allows an authorized attacker to elevate privileges locally.
- CVE-2026-61928Medium
Cleartext storage of sensitive information in Windows Hello allows an authorized attacker to perform tampering locally.
Original NVD description (English source)
Windows Hello Security Feature Bypass Vulnerability
Vulnerability data from NVD (NIST) · CISA KEV · EPSS