Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2026-74497

8.4 · HIGH

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…

Published Aug 15, 2026EPSS 0.14%

Overview

CVE-2026-74497 is a high-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/09cf3dbbb4256a43feb91d2f51f274510a9ada47Refgit.kernel.org/stable/c/2d39fea6d3c19a2f5811d123114d92e3d0115fd1Refgit.kernel.org/stable/c/2db4535d6af79276a64449201c5be5feffb31c64Refgit.kernel.org/stable/c/53f0aa37eb945f3c983f61d12fc35eb33debb8a9Refgit.kernel.org/stable/c/56ac3e7c90f6b45969c3fd07a98fad760ffd6901Refgit.kernel.org/stable/c/8d7a30c50c2e58a6839634ed0acde14466d1dc61Refgit.kernel.org/stable/c/be97fea7451d758881b95af78e900dd0d58a382aRefgit.kernel.org/stable/c/cfa8d3e0e8b812c4db4d5241f62b6bdbab2bd7be

How CyberStrike helps

Frequently asked questions

What is CVE-2026-74497?

CVE-2026-74497 is a high-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).

How severe is CVE-2026-74497?

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-74497?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-74497?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-74497 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related HIGH CVEs from 2026

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999