CVE-2025-39862: Linux kernel · wifi: mt76: mt7915: fix list corruption after hardware restart
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 8.8 High.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 18% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 19 Sep 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-aws-6.14pkg:deb/ubuntu/linux-aws-6.14@6.14.0-1018.18~24.04.1?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– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix has been implemented in the Linux kernel to address this issue. Users should update to a patched kernel version that includes the fix for CVE-2025-39862. Since this is not a cloud service, remediation requires applying the updated kernel. Patch status is confirmed by the description stating the vulnerability has been resolved.
Description
A vulnerability in the Linux kernel's mt76 wifi driver for the mt7915 chipset caused list corruption after hardware restart. This issue arises because station entries are recreated from scratch, but the lists that wcids are added to were not properly cleared before calling ieee80211_restart_hw. The fix involves setting wcid->sta to 0 for each wcid entry to prevent them from being added prematurely.
References
- ubuntu.com/security/CVE-2025-39862 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2025-39862 (opens in a new tab)
- git.kernel.org/linus/065c79df595af21d6d1b27d642860faa1d938774 (opens in a new tab)
- git.kernel.org/stable/c/065c79df595af21d6d1b27d642860faa1d938774 (opens in a new tab)
- git.kernel.org/stable/c/8fa8eb52bc2eb08d93202863b5fc478e0bebc00c (opens in a new tab)