VulnerabilityPublished 3 Jul 2025Updated 5 Nov 2026

CVE-2025-38157: Linux kernel · wifi: ath9k_htc: Abort software beacon handling if disabled

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in ee5ee646385f5846dcbc881389f3c44a197c402a : update Linux kernel when convenient.

Data as of 5 Nov 2026, 21:04 UTC

Severity

Unrated

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

Thin evidence

One scorer or none

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 ee5ee646385f5846dcbc881389f3c44a197c402a, e5ce9df1d68094d37360dbd9b09289d42fa21e54, ac4e317a95a1092b5da5b9918b7118759342641c +5

Exploitation evidence

Disclosed: evidence found.
CVE published 3 Jul 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 ≥ 832f6a18fc2aead14954c081ece03b7a5b425f81, < ee5ee646385f5846dcbc881389f3c44a197c402a	Fixed in ee5ee646385f5846dcbc881389f3c44a197c402a
LinuxLinux	Affected ≥ 832f6a18fc2aead14954c081ece03b7a5b425f81, < e5ce9df1d68094d37360dbd9b09289d42fa21e54	Fixed in e5ce9df1d68094d37360dbd9b09289d42fa21e54
LinuxLinux	Affected ≥ 832f6a18fc2aead14954c081ece03b7a5b425f81, < ac4e317a95a1092b5da5b9918b7118759342641c	Fixed in ac4e317a95a1092b5da5b9918b7118759342641c
LinuxLinux	Affected ≥ 832f6a18fc2aead14954c081ece03b7a5b425f81, < 40471b23147c86ea3ed97faee79937c618250bd0	Fixed in 40471b23147c86ea3ed97faee79937c618250bd0
LinuxLinux	Affected ≥ 832f6a18fc2aead14954c081ece03b7a5b425f81, < 5482ef9875eaa43f0435e14570e1193823de857e	Fixed in 5482ef9875eaa43f0435e14570e1193823de857e
LinuxLinux	Affected ≥ 832f6a18fc2aead14954c081ece03b7a5b425f81, < 0281c19074976ec48f0078d50530b406ddae75bc	Fixed in 0281c19074976ec48f0078d50530b406ddae75bc

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k_htc: Abort software beacon handling if disabled A malicious USB device can send a WMI_SWBA_EVENTID event from an ath9k_htc-managed device before beaconing has been enabled. This causes a device-by-zero error in the driver, leading to either a crash or an out of bounds read. Prevent this by aborting the handling in ath9k_htc_swba() if beacons are not enabled.

References

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