CVE-2025-38128

kernel: Linux kernel: Memory corruption in Bluetooth subsystem via malformed HCI_CMD_SYNC command

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · July 3, 2025

Updated · July 8, 2026

Description

A flaw was found in the Linux kernel's Bluetooth subsystem. A local attacker can exploit this vulnerability by sending a specially crafted HCI_CMD_SYNC command with a malformed parameter length. This can lead to memory corruption, potentially causing a denial of service or system instability.

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 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-787 · Out-of-bounds Write