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VulnerabilityPublished Updated

CVE-2025-37743: Linux kernel · wifi: ath12k: Avoid memory leak while enabling statistics

Affects Linux kernelSource GCVE Database

0

Not known to be exploited · CVSS 5.5 Medium.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 15% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 May 2025

  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

Affected software

ProductAffectedFixed in
Ubuntu 25.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde@6.17.0-1017.17?arch=source&distro=questingOther threatsAffected
  • 6.17.0-1003.3 – 6.17.0-1017.17
10 affected builds
Fixed in–
Ubuntu 24.04 LTSlinuxpkg:deb/ubuntu/linux@6.8.0-136.136?arch=source&distro=nobleOther threatsAffected
  • 6.5.0-9.9 – 6.8.0-136.136
53 affected builds
Fixed in–
Ubuntu 24.04 LTSlinux-awspkg:deb/ubuntu/linux-aws@6.8.0-1060.63?arch=source&distro=nobleOther threatsAffected
  • 6.5.0-1008.8 – 6.8.0-1060.63
48 affected builds
Fixed in–
Ubuntu 24.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure@6.8.0-1062.69?arch=source&distro=nobleOther threatsAffected
  • 6.5.0-1007.7 – 6.8.0-1062.69
39 affected builds
Fixed in–
Ubuntu 24.04 LTSlinux-azure-6.11pkg:deb/ubuntu/linux-azure-6.11@6.11.0-1018.18~24.04.1?arch=source&distro=nobleOther threatsAffected
  • 6.11.0-1008.8~24.04.1 – 6.11.0-1018.18~24.04.1
7 affected builds
Fixed in–
Ubuntu 24.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde@6.8.0-1061.68?arch=source&distro=nobleOther threatsAffected
  • 6.8.0-1041.48 – 6.8.0-1061.68
6 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available and has been incorporated into updated Linux kernel versions. Users should apply the official Linux kernel updates that address this issue. The Ubuntu security advisory USN-7594-1 confirms that this and other Linux kernel vulnerabilities have been fixed. No additional mitigation steps are required beyond applying the patch.

Description

A memory leak vulnerability was identified and resolved in the Linux kernel's ath12k WiFi driver related to enabling extended statistics mode. The issue involved unnecessary allocation of memory (kzalloc) for a mon_mpdu object when enabling extended statistics mode, which was not freed, causing a memory leak. The fix removes this allocation in the relevant TLV handling and defers standalone monitor mode handling to future updates. This vulnerability affects specific Linux kernel versions and has a medium severity rating with a CVSS score of 5.5.

References

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