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CVE-2026-53148

kernel: thunderbolt: Clamp XDomain response data copy to allocation size

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Severity

Important

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · June 25, 2026

Updated · July 8, 2026

Description

A flaw was found in the Linux kernel's Thunderbolt driver. A malicious peer can exploit this vulnerability by sending a specially crafted response that causes the system to write data beyond an allocated memory buffer. This out-of-bounds write can lead to memory corruption, which may allow an attacker to cause a denial of service or potentially execute arbitrary code.

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