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VulnerabilityPublished Updated

CVE-2026-46125: Linux kernel · wifi: mac80211: remove station if connection prep fails

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited · CVSS 8.8 High · fixed in fe75fa1ac9a92990f7fc3d34b17808fd933071b2 : patch Linux kernel soon.

Data as of 26 Oct 2026, 14:18 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 22% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Total control over the software or total information disclosure

CISA SSVC assessment, 2026-10-16.

Patch
Available – fixed in fe75fa1ac9a92990f7fc3d34b17808fd933071b2, afcbaed89cdc1a001b43270cbf5394bb4804270a, 283fc9e44ff5b5ac967439b4951b80bd4299f4e4 +3
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 May 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 to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 81151ce462e533551f3284bfdb8e0f461c9220e6, < fe75fa1ac9a92990f7fc3d34b17808fd933071b2
Fixed in
  • fe75fa1ac9a92990f7fc3d34b17808fd933071b2
LinuxLinuxAffected
  • ≥ 81151ce462e533551f3284bfdb8e0f461c9220e6, < afcbaed89cdc1a001b43270cbf5394bb4804270a
Fixed in
  • afcbaed89cdc1a001b43270cbf5394bb4804270a
LinuxLinuxAffected
  • ≥ 81151ce462e533551f3284bfdb8e0f461c9220e6, < 283fc9e44ff5b5ac967439b4951b80bd4299f4e4
Fixed in
  • 283fc9e44ff5b5ac967439b4951b80bd4299f4e4
LinuxLinuxAffected
  • ≥ 81151ce462e533551f3284bfdb8e0f461c9220e6, < 18fed0a209500bfea5c4c08609ec93855e4e500b
Fixed in
  • 18fed0a209500bfea5c4c08609ec93855e4e500b
LinuxLinuxAffected
  • ≥ 81151ce462e533551f3284bfdb8e0f461c9220e6, < 9e28654f79f443bca9b29ff3ae7cf18abfba58a0
Fixed in
  • 9e28654f79f443bca9b29ff3ae7cf18abfba58a0
LinuxLinuxAffected
  • ≥ 81151ce462e533551f3284bfdb8e0f461c9220e6, < 1c2b72ea89882aeb948340498391e69c58d466f1
Fixed in
  • 1c2b72ea89882aeb948340498391e69c58d466f1

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: remove station if connection prep fails If connection preparation fails for MLO connections, then the interface is completely reset to non-MLD. In this case, we must not keep the station since it's related to the link of the vif being removed. Delete an existing station. Any "new_sta" is already being removed, so that doesn't need changes. This fixes a use-after-free/double-free in debugfs if that's enabled, because a vif going from MLD (and to MLD, but that's not relevant here) recreates its entire debugfs.

References

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