CVE-2026-80552: s390/vfio_ccw: Ensure index for read/write regions are within range

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/E:U

Exploit Status

Not Exploited

Patch Tuesday

2026-Aug

Released

2026-08-27

Last Updated

2026-10-02

EPSS Score

0.18% (percentile: 6.7%)

Affected Products (2)

Other

• 21892-17084
• 21684-17084

Revision History

• 2026-08-27: Information published.
• 2026-09-23: Information published.
• 2026-09-23: Information published.
• 2026-09-24: Information published.
• 2026-10-02: Information published.