CVE-2026-64483

kernel: ALSA: firewire: isight: bound the sample count to the packet payload

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Severity

Moderate

Red Hat Product Security

6.3

CVSS 3.1

Review impact separately from score.

Published · July 25, 2026

Updated · September 15, 2026

Description

A flaw was found in the Linux kernel's ALSA FireWire iSight driver. A malicious or faulty Apple iSight device connected via FireWire can send specially crafted audio packets. The driver incorrectly processes the sample count in these packets, leading to a buffer overflow where data can be written beyond the allocated memory region. This could result in memory corruption, potentially impacting system stability or leading to further exploitation.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 6.3
CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')