CVE-2026-27928 Windows Hello Security Feature Bypass Vulnerability
An unauthorized attacker can bypass Windows Hello security features over a network due to improper input validation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-27928?
CVE-2026-27928 is a high-severity vulnerability in Microsoft Windows Server 2016, published on 14 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper input validation in Windows Hello allows an unauthorized attacker to bypass a security feature over a network.
Weakness: CWE-20
Which versions are affected by CVE-2026-27928?
It affects 5 products.
Products include Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Windows Server 2022 23h2, Microsoft Windows Server 2025.
How do I fix CVE-2026-27928?
No fix has been published for CVE-2026-27928 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-27928 being exploited?
There is no known exploitation of CVE-2026-27928 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows Server 2016
- CVE-2021-34458 Windows Kernel Remote Code Execution Vulnerability
- CVE-2024-38076 Windows Remote Desktop Licensing Service Remote Code Execution Vulnerability
- CVE-2025-27482 Windows Remote Desktop Services Remote Code Execution Vulnerability
- CVE-2024-49106 Windows Remote Desktop Services Remote Code Execution Vulnerability
- CVE-2024-49108 Windows Remote Desktop Services Remote Code Execution Vulnerability
Sources
Also known as GHSA-6qx2-q8q2-jv3c.