High 7.8Published Sep 4, 2025

CVE-2025-38729ALSA: usb-audio: Validate UAC3 power domain descriptors, too

Updated under an hour ago (Oct 27, 2026, 10:30 AM ET)

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It affects Linux and 3 other products. Add what you run to find out whether that includes you.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Validate UAC3 power domain descriptors, too UAC3 power domain descriptors need to be verified with its variable bLength for avoiding the unexpected OOB accesses by malicious firmware, too.

CVSS: 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: May 12, 2026
First seen by InfoSec Signals: Oct 19, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 9a2fe9b801f585baccf8352d82839dcd54b300cf before 1666207ba0a5973735ef010812536adde6174e81; from 9a2fe9b801f585baccf8352d82839dcd54b300cf before ebc9e06b6ea978a20abf9b87d41afc51b2d745ac; from 9a2fe9b801f585baccf8352d82839dcd54b300cf before f03418bb9d542f44df78eec2eff4ac83c0a8ac0d; from 9a2fe9b801f585baccf8352d82839dcd54b300cf before 40714daf4d0448e1692c78563faf0ed0f9d9b5c7; 9a2fe9b801f585baccf8352d82839dcd54b300cf builds before 07c8d78dbb5e0ff8b23f7fd69cd1d4e2ba22b3dc; from 9a2fe9b801f585baccf8352d82839dcd54b300cf before cd08d390d15b204cac1d3174f5f149a20c52e61a; from 9a2fe9b801f585baccf8352d82839dcd54b300cf before 29b415ec09f5b9d1dfa2423b826725a8c8796b9a; from 9a2fe9b801f585baccf8352d82839dcd54b300cf before 452ad54f432675982cc0d6eb6c40a6c86ac61dbd; and 1 more ranges	CNA record
Siemens SIMATIC CN 4100 siemens:simatic_cn_4100 (from the name)	before V5.0	CISA ADP
linux linux_kernel linux:linux_kernel	from 4.17 before 5.4.297; from 5.5 before 5.10.241; from 5.11 before 5.15.190; from 5.16 before 6.1.149; from 6.2 before 6.6.103; from 6.7 before 6.12.43; from 6.13 before 6.15.11; from 6.16 before 6.16.2; and 1 more ranges	NVD
debian debian_linux debian:debian_linux	11.0	NVD

References

References

https://git.kernel.org/stable/c/1666207ba0a5973735ef010812536adde6174e81	patch
https://git.kernel.org/stable/c/ebc9e06b6ea978a20abf9b87d41afc51b2d745ac	patch
https://git.kernel.org/stable/c/f03418bb9d542f44df78eec2eff4ac83c0a8ac0d	patch
https://git.kernel.org/stable/c/40714daf4d0448e1692c78563faf0ed0f9d9b5c7	patch
https://git.kernel.org/stable/c/07c8d78dbb5e0ff8b23f7fd69cd1d4e2ba22b3dc	patch
https://git.kernel.org/stable/c/cd08d390d15b204cac1d3174f5f149a20c52e61a	patch
https://git.kernel.org/stable/c/29b415ec09f5b9d1dfa2423b826725a8c8796b9a	patch
https://git.kernel.org/stable/c/452ad54f432675982cc0d6eb6c40a6c86ac61dbd	patch
https://git.kernel.org/stable/c/d832ccbc301fbd9e5a1d691bdcf461cdb514595f	patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html	mailing-list, third-party-advisory
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.