CVE-2026-27928
CWE-20Published: April 14, 2026· Updated: Apr 17, 2026
Official Description
Improper input validation in Windows Hello allows an unauthorized attacker to bypass a security feature over a network.
Technical Analysis
CVE-2026-27928 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.7.
The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
All References (1)
Quick Facts
Related CVEs (CWE-20)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-27928 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts