CVE-2026-20852
HighCVSS 7.7Exploitation Probability (EPSS)
Low risk39th percentile - higher than 39% of all known CVEs
Summary
An incorrect privilege assignment vulnerability in Windows Hello allows an unauthorized attacker to perform tampering locally.
Risk Assessment
An attacker could alter configuration or credentials, potentially compromising login security.
Recommendation
Install the latest Windows security updates from Microsoft.
Other vulnerabilities in Windows Hello
See all- CVE-2026-61928Medium
Cleartext storage of sensitive information in Windows Hello allows an authorized attacker to perform tampering locally.
- CVE-2026-20804High
Incorrect privilege assignment in Windows Hello allows an unauthorized attacker to perform tampering locally.
- CVE-2021-42288Medium
Security feature bypass vulnerability in Windows Hello. An attacker could bypass authentication mechanisms.
- CVE-2021-34466Medium
A vulnerability in Windows Hello allows a security feature bypass. An attacker could exploit this flaw to bypass authentication mechanisms.
Original NVD description (English source)
Incorrect privilege assignment in Windows Hello allows an unauthorized attacker to perform tampering locally.