CVE-2025-71150: ksmbd: Fix refcount leak when invalid session is found on session lookup

Overview

Severity

Medium (CVSS 5.5)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Aug

Released

2026-02-28

Last Updated

2026-08-07

EPSS Score

0.23% (percentile: 14.2%)

Affected Products (4)

Open Source Software

• cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0
• cbl2 kernel 5.15.202.1-1
• cbl2 kernel 5.15.200.1-1 on CBL Mariner 2.0
• cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0

Revision History

• 2026-02-28: Information published.
• 2026-03-02: Information published.
• 2026-03-03: Information published.
• 2026-03-31: Information published.
• 2026-08-07: Information published.