CVE-2025-37743: Linux kernel · wifi: ath12k: Avoid memory leak while enabling statistics
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 5.5 Medium.
Data as of 26 Oct 2026, 12:29 UTC
- 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:HExploitation evidence
Disclosed: evidence found.
CVE published 1 May 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 25.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde@6.17.0-1017.17?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinuxpkg:deb/ubuntu/linux@6.8.0-136.136?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-awspkg:deb/ubuntu/linux-aws@6.8.0-1060.63?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure@6.8.0-1062.69?arch=source&distro=nobleOther threats | Affected
| 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 threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde@6.8.0-1061.68?arch=source&distro=nobleOther threats | Affected
| 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
- ubuntu.com/security/CVE-2025-37743 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2025-37743 (opens in a new tab)
- git.kernel.org/linus/ecfc131389923405be8e7a6f4408fd9321e4d19b (opens in a new tab)
- git.kernel.org/stable/c/286bab0fc7b9db728dab8c63cadf6be9b3facf8c (opens in a new tab)
- git.kernel.org/stable/c/ecfc131389923405be8e7a6f4408fd9321e4d19b (opens in a new tab)
- ubuntu.com/security/notices/USN-7594-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7594-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7594-3 (opens in a new tab)