CVE-2025-1272 Kernel: secure boot does not automatically enable kernel lockdown
Attackers can bypass Secure Boot protections to load unsigned modules and access sensitive kernel memory due to disabled lockdown mode.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-1272?
CVE-2025-1272 is a high-severity vulnerability in Fedora Linux, published on 18 Feb 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
The Linux Kernel lockdown mode for kernel versions starting on 6.12 and above for Fedora Linux has the lockdown mode disabled without any warning. This may allow an attacker to gain access to sensitive information such kernel memory mappings, I/O ports, BPF and kprobes. Additionally unsigned modules can be loaded, leading to execution of untrusted code breaking breaking any Secure Boot protection. This vulnerability affects only Fedora Linux.
Weakness: CWE-306
Which versions are affected by CVE-2025-1272?
How do I fix CVE-2025-1272?
Apply the vendor's patch.
Is CVE-2025-1272 being exploited?
There is no known exploitation of CVE-2025-1272 in the wild and no public exploit code.
Sources
Also known as GHSA-xj75-gfvf-4g86, ROOT-OS-UBUNTU-2204-CVE-2025-1272, UBUNTU-CVE-2025-1272.