CVE-2026-12505: Cifs-utils: local privilege escalation via forged cifs.spnego key description in cifs.upcall

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-Jun

Released

2026-06-27

Last Updated

2026-06-30

EPSS Score

0.16% (percentile: 5.3%)

Affected Products (1)

Mariner

• azl3 cifs-utils 7.3-1 on Azure Linux 3.0

Revision History

• 2026-06-27: Information published.
• 2026-06-30: Information published.