CVE-2026-46125: Linux kernel · wifi: mac80211: remove station if connection prep fails
Affects Linux kernelSource CVE Database V5
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
- 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:HExploitation evidence
Disclosed: evidence found.
CVE published 28 May 2026
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
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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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
- git.kernel.org/stable/c/18fed0a209500bfea5c4c08609ec93855e4e500b (opens in a new tab)
- git.kernel.org/stable/c/fe75fa1ac9a92990f7fc3d34b17808fd933071b2 (opens in a new tab)
- git.kernel.org/stable/c/afcbaed89cdc1a001b43270cbf5394bb4804270a (opens in a new tab)
- git.kernel.org/stable/c/9e28654f79f443bca9b29ff3ae7cf18abfba58a0 (opens in a new tab)
- git.kernel.org/stable/c/1c2b72ea89882aeb948340498391e69c58d466f1 (opens in a new tab)
- git.kernel.org/stable/c/283fc9e44ff5b5ac967439b4951b80bd4299f4e4 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-46125 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2482608 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46125.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:27731 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:27288 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:26515 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:27735 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:27708 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:27789 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:26427 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:26563 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:26428 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:26462 (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-784472.html (opens in a new tab)