CVE-2026-80551: Linux 5.3

CVE-2026-80551. CVSS 3.1 base score 9.3 (CRITICAL, Source advisory). EPSS 0.00196 (percentile 0.0863), scored 15-Oct-2026.

Affected technology

Linux · 01aa26c672c0eb771de4aaa2a8ccf6055778887b to before 460b977a4e71cc319fdadf91c193ec3beaa57263, 01aa26c672c0eb771de4aaa2a8ccf6055778887b to before 0d46c2565f173bcddcdcaf44a4f69789a20535e2, 01aa26c672c0eb771de4aaa2a8ccf6055778887b to before 08ef2a82115690d6e229615872ac1731af732497, 01aa26c672c0eb771de4aaa2a8ccf6055778887b to before fc59e9482117ebdccd6dc7fa8082f8b980fd021e, 01aa26c672c0eb771de4aaa2a8ccf6055778887b to before 565bef268d75bf7df665bce6923a88cd0eb74592
Linux

Linux · 5.3
Linux

Component: Not specified by the source
File: drivers/s390/cio/vfio_ccw_cp.c, drivers/s390/cio/vfio_ccw_cp.h

Attack conditions (Source advisory, CVSS 3.1): Local · No privileges required · No user interaction required

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 9.3/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 16-Oct-2026 20:21 UTC

CCR priority: 37.2 /100 (P4)
CVSS 3.1: 9.3 /10 · CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H · Source advisory
EPSS: 0.00196 · percentile 0.0863 · 2026-10-15
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-16 20:20:42.059737+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-80551.html