CVE-2026-46140
kernel: Bluetooth: btmtk: validate WMT event SKB length before struct access
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 28, 2026
Updated · July 3, 2026
Description
A flaw was found in the Linux kernel's Bluetooth subsystem, specifically within the btmtk driver. A remote attacker could exploit this vulnerability by sending a specially crafted Wireless Management Terminal (WMT) event response. The system processes these responses without properly validating the length of incoming data, which can lead to an out-of-bounds read. This issue could result in information disclosure or a denial of service (DoS) condition.
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-125 · Out-of-bounds Read