CVE-2026-83926
MediumCVSS 4.4Exploitation Probability (EPSS)
Low risk32th percentile - higher than 32% of all known CVEs
Summary
Improper certificate validation in Windows Hello allows an authorized attacker to bypass a security feature locally.
Risk Assessment
A locally authenticated attacker could bypass the Windows Hello security feature, potentially enabling unauthorized access to protected resources.
Recommendation
Immediately install the security update for Windows Hello and consider additional authentication layers for critical systems.
Other vulnerabilities in Windows Hello
See all- CVE-2026-83907Medium
Exposure of sensitive system information to an unauthorized control sphere in Windows Hello allows an authorized attacker to disclose information locally.
- CVE-2026-83853High
Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.
- CVE-2026-83849Medium
Out-of-bounds read in Windows Hello allows an authorized attacker to disclose information locally.
- CVE-2026-83790High
Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.
- CVE-2026-83740High
Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.
- CVE-2026-70280Medium
Incorrect authorization in Windows Hello allows an authorized attacker to bypass a security feature locally.
- 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.
Original NVD description (English source)
Improper certificate validation in Windows Hello allows an authorized attacker to bypass a security feature locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS