PulseLinuxLINUX UPDATE INTELLIGENCE
CVE Database›Document archive›CVE-2026-64387

CVE-2026-64387

kernel: smb: client: fix query directory replay double-free

Loading…

Severity

Important

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · July 25, 2026

Updated · October 29, 2026

Description

A flaw was found in the Linux kernel's Server Message Block (SMB) client. This vulnerability, a double-free error, occurs when the client attempts to free the same memory buffer twice during a directory query operation. An attacker could potentially exploit this flaw to cause memory corruption, leading to a denial of service or, in some cases, arbitrary code execution.

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-1341 · Multiple Releases of Same Resource or Handle