VulnerabilityPublished 22 Aug 2025Updated 5 Nov 2026

CVE-2025-38644: Linux kernel · wifi: mac80211: reject TDLS operations when station is not associated

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in af72badd5ee423eb16f6ad7fe0a62f1b4252d848 : update Linux kernel when convenient.

Data as of 5 Nov 2026, 23:23 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

EPSS

0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-05.

Patch

Available – fixed in af72badd5ee423eb16f6ad7fe0a62f1b4252d848, 378ae9ccaea3f445838a087962a067b5cb2e8577, 31af06b574394530f68a4310c45ecbe2f68853c4 +3

Exploitation evidence

Disclosed: evidence found.
CVE published 22 Aug 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 5 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 81dd2b8822410e56048b927be779d95a2b6dc186, < af72badd5ee423eb16f6ad7fe0a62f1b4252d848	Fixed in af72badd5ee423eb16f6ad7fe0a62f1b4252d848
LinuxLinux	Affected ≥ 81dd2b8822410e56048b927be779d95a2b6dc186, < 378ae9ccaea3f445838a087962a067b5cb2e8577	Fixed in 378ae9ccaea3f445838a087962a067b5cb2e8577
LinuxLinux	Affected ≥ 81dd2b8822410e56048b927be779d95a2b6dc186, < 31af06b574394530f68a4310c45ecbe2f68853c4	Fixed in 31af06b574394530f68a4310c45ecbe2f68853c4
LinuxLinux	Affected ≥ 81dd2b8822410e56048b927be779d95a2b6dc186, < 16ecdab5446f15a61ec88eb0d23d25d009821db0	Fixed in 16ecdab5446f15a61ec88eb0d23d25d009821db0
LinuxLinux	Affected ≥ 81dd2b8822410e56048b927be779d95a2b6dc186, < 4df663d4c1ca386dcab2f743dfc9f0cc07aef73c	Fixed in 4df663d4c1ca386dcab2f743dfc9f0cc07aef73c
LinuxLinux	Affected ≥ 81dd2b8822410e56048b927be779d95a2b6dc186, < 0c84204cf0bbe89e454a5caccc6a908bc7db1542	Fixed in 0c84204cf0bbe89e454a5caccc6a908bc7db1542

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: reject TDLS operations when station is not associated syzbot triggered a WARN in ieee80211_tdls_oper() by sending NL80211_TDLS_ENABLE_LINK immediately after NL80211_CMD_CONNECT, before association completed and without prior TDLS setup. This left internal state like sdata->u.mgd.tdls_peer uninitialized, leading to a WARN_ON() in code paths that assumed it was valid. Reject the operation early if not in station mode or not associated.

References

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