CVE-2026-27913 Windows BitLocker Security Feature Bypass Vulnerability
An attacker can locally bypass BitLocker security features due to improper input validation in Windows Server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-27913?
CVE-2026-27913 is a high-severity vulnerability in Microsoft Windows Server 2012, published on 14 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper input validation in Windows BitLocker allows an unauthorized attacker to bypass a security feature locally.
Weakness: CWE-20
Which versions are affected by CVE-2026-27913?
It affects 5 products.
Products include Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Windows Server 2022 23h2.
How do I fix CVE-2026-27913?
No fix has been published for CVE-2026-27913 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-27913 being exploited?
There is no known exploitation of CVE-2026-27913 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows Server 2012
- CVE-2025-59287 Microsoft Windows Server Update Service (WSUS) Deserialization of Untrusted Data
- CVE-2026-69595 Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
- CVE-2026-78445 Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
- CVE-2026-41089 Windows Netlogon Remote Code Execution Vulnerability
- CVE-2024-43639 Windows KDC Proxy Remote Code Execution Vulnerability
Sources
Also known as GHSA-9g78-wccg-v453.