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VulnerabilityPublished Updated

CVE-2025-1272: Fedora Linux · Missing Authentication

Affects Fedora LinuxSource CVE Database V5

0

Not known to be exploited · CVSS 7.7 High : upgrade the Fedora Linux kernel package to 6.12.15-200.fc41 or 6.12.15-100.fc40 soon.

Data as of 26 Oct 2026, 09:15 UTC

CVSS 3.1 base score
7.7High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 16% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 6.12.15-200.fc41, 6.12.15-100.fc40
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade the Fedora Linux kernel package to 6.12.15-200.fc41 or 6.12.15-100.fc40.

Affected software

ProductAffectedFixed in
Fedora LinuxkernelAffected
  • >=6.12.4-100.fc40 <6.12.15-100.fc40
  • >=6.12.1-200.fc41 <6.12.15-200.fc41
Fixed in
  • 6.12.15-200.fc41
  • 6.12.15-100.fc40

AI-suggested

1. 2. If you cannot patch yet, restrict access to systems running affected Fedora versions by enforcing strict privilege separation and limiting local administrative access. 3. Employ additional host-based security controls such as Mandatory Access Control (e.g., SELinux) to limit kernel interface access. 4. Disable or restrict loading of kernel modules where possible, and monitor kernel module loading events for suspicious activity. 5. Use hardware-based security features like TPM and Secure Boot in conjunction with system integrity monitoring to detect unauthorized kernel modifications. 6. Conduct regular audits of privileged user activities and kernel module usage to detect potential exploitation attempts. 7. Consider temporary migration to unaffected Fedora versions or alternative Linux distributions if feasible until a patch is available.

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.

References

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