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Vulnerability record · CVE-2025-1272 · published 18 February 2026

CVE-2025-1272: Missing authentication for critical function vulnerability

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.

7.7 CVSS 3.1 High EPSS 0.24% · top 86.9% CWE-306 · Missing authentication for critical function Deferred
7.7CVSS 3.1 base score
0.24%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H

References

LinkTags
https://access.redhat.com/errata/RHSA-2025:6966
https://access.redhat.com/security/cve/CVE-2025-1272
https://bugzilla.redhat.com/show_bug.cgi?id=2345615

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Source: NIST National Vulnerability Database (record CVE-2025-1272), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.