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-2026-83853High
Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.
- CVE-2026-83790High
Use after free in Windows Hello allows an authorized attacker to elevate privileges 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.
- 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.
Original NVD description (English source)
Incorrect privilege assignment in Windows Hello allows an unauthorized attacker to perform tampering locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS