CVE-2025-39757

CVE-2025-39757: vulnerability in Linux

ALSA: usb-audio: Validate UAC3 cluster segment descriptors

Published · Updated

3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 0.2%
exploitation probability
0.2%top 93% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Validate UAC3 cluster segment descriptors UAC3 class segment descriptors need to be verified whether their sizes match with the declared lengths and whether they fit with the allocated buffer sizes, too. Otherwise malicious firmware may lead to the unexpected OOB accesses.
Affected products
Linux · Linux
Related CVEs — Linux

In the same product, most dangerous first.

CVE-2024-53197HIGHALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devicesEPSS 4.1%KEVCVE-2026-31431HIGHcrypto: algif_aead - Revert to operating out-of-placeEPSS 3.4%KEVCVE-2024-53104HIGHmedia: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_formatEPSS 3.4%KEVCVE-2025-39682CRITICALtls: fix handling of zero-length records on the rx_listEPSS 2.9%KEVCVE-2024-36971HIGHnet: fix __dst_negative_advice() raceEPSS 2.7%KEVCVE-2025-39964HIGHcrypto: af_alg - Disallow concurrent writes in af_alg_sendmsgEPSS 1.4%KEV
References
https://cert-portal.siemens.com/productcert/html/ssa-032379.htmlhttps://git.kernel.org/stable/c/1034719fdefd26caeec0a44a868bb5a412c2c1a5https://git.kernel.org/stable/c/275e37532e8ebe25e8a4069b2d9f955bfd202a46https://git.kernel.org/stable/c/47ab3d820cb0a502bd0074f83bb3cf7ab5d79902https://git.kernel.org/stable/c/786571b10b1ae6d90e1242848ce78ee7e1d493c4https://git.kernel.org/stable/c/799c06ad4c9c790c265e8b6b94947213f1fb389chttps://git.kernel.org/stable/c/7ef3fd250f84494fb2f7871f357808edaa1fc6cehttps://git.kernel.org/stable/c/ae17b3b5e753efc239421d186cd1ff06e5ac296ehttps://git.kernel.org/stable/c/dfdcbcde5c20df878178245d4449feada7d5b201https://git.kernel.org/stable/c/ecfd41166b72b67d3bdeb88d224ff445f6163869https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlhttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.html