Is CVE-2026-93808 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-93808 being exploited in the wild.

How severe is CVE-2026-93808?

Informational severity, published 24 September 2026.

Which products and versions are affected?

Unknown Linux kernel all versions prior to fix commit aba30af07d4fe499b50209801eba9da8a815522f.

Is there a fix for CVE-2026-93808?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-93808 attacked?

It is attacked from the adjacent network, in an operating system.

Am I affected by CVE-2026-93808?

Check whether you run Unknown Linux kernel at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-93808: Linux kernel ALSA USB audio caiaq buffer over-read

CVE-2026-93808 · Severity: info · Published 2026-09-24

The Linux kernel's USB audio driver for Native Instruments Komplete Audio interfaces fails to validate the length of responses from the device before reading fixed-size fields, enabling a malicious or malfunctioning device to trigger out-of-bounds memory reads. An attacker with physical access to connect a malicious USB device could read sensitive kernel memory or cause a denial of service.

Technologies: Unknown Linux kernel. Vendors: Unknown.

Quick answers

Is CVE-2026-93808 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-93808 being exploited in the wild.
How severe is CVE-2026-93808?: Informational severity, published 24 September 2026.
Which products and versions are affected?: Unknown Linux kernel all versions prior to fix commit aba30af07d4fe499b50209801eba9da8a815522f.
Is there a fix for CVE-2026-93808?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-93808 attacked?: It is attacked from the adjacent network, in an operating system.
Am I affected by CVE-2026-93808?: Check whether you run Unknown Linux kernel at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The usb_ep1_command_reply_dispatch() function in sound/usb/caiaq/device.c and snd_caiaq_input_read_analog() in sound/usb/caiaq/input.c access fixed offsets in USB URB buffers without first checking that urb->actual_length contains sufficient bytes. This allows reads of uninitialized kernel memory when a USB device returns truncated responses. The fix adds per-command payload length validation before accessing buffer fields.

Affected products

<UNKNOWN> Linux kernel all versions prior to fix commit aba30af07d4fe499b50209801eba9da8a815522f

Timeline

2026-09-24: disclosed

References

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