CVE-2025-68786: ksmbd: skip lock-range check on equal size to avoid size==0 underflow

Overview

Severity

High (CVSS 7.8)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Jan

Released

2026-01-15

Last Updated

2026-02-21

EPSS Score

0.04% (percentile: 11.5%)

Affected Products (2)

Other

• 20823-17084
• 20788-17084

Revision History

• 2026-01-15: Information published.
• 2026-01-20: Information published.
• 2026-01-21: Information published.
• 2026-02-21: Information published.