CVE-2025-21704

kernel: Linux kernel: usb: cdc-acm: Memory corruption due to improper buffer size check

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Severity

Moderate

Red Hat Product Security

6.5

CVSS 3.1

Review impact separately from score.

Published · February 22, 2025

Updated · June 30, 2026

Description

A flaw was found in the Linux kernel usb: cdc-acm component. This vulnerability allows memory corruption via improper checking of control transfer buffer size.

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 · 6.5
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:H

CWE-130 · Improper Handling of Length Parameter Inconsistency