CVE-2026-74497

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-74497

Key Details

CVE	CVE-2026-74497
CVSS Score / Version	8.4 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

ALSA: usb-audio: Clamp frame size in implicit-feedback mode

snd_usb_handle_sync_urb() scales received sync packet sizes by the sender's

stride and stores the result directly in out_packet->packet_size[i]. If a

connected USB device sends an oversized sync packet, this frame count can

exceed ep->maxframesize.

The un-clamped frame count then propagates to the playback endpoint queue,

potentially driving packet transfers beyond the endpoint's hardware frame

limits.

Cap the calculated frame count against ep->maxframesize in

snd_usb_handle_sync_urb() to prevent oversized packets from entering the

playback queue. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-74497
CVE	https://www.cve.org/CVERecord?id=CVE-2026-74497

Source

Reference

NVD

CVE