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CVE-2026-63901

kernel: USB: serial: digi_acceleport: fix memory corruption with small endpoints

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Severity

Moderate

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · July 19, 2026

Updated · October 31, 2026

Description

A flaw was found in the Linux kernel's digi_acceleport USB serial driver. A malicious Universal Serial Bus (USB) device could report smaller bulk-out buffers than expected. This lack of proper size validation could lead to out-of-bounds memory accesses or slab corruption, potentially causing system instability or a denial of service.

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 · 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-787 · Out-of-bounds Write