CVE-2026-80549: Linux 6.0

CVE-2026-80549. CVSS 3.1 base score 8.2 (HIGH, Source advisory). EPSS 0.00183 (percentile 0.07366), scored 15-Oct-2026.

Affected technology

Linux · 204b394a23ad5e30944f23518e21e844614da2ff to before c9b85aa2cf73ea645e55e2c2670e0ddebfe1589b, 204b394a23ad5e30944f23518e21e844614da2ff to before f98a9890ca42f4223d2d4c50e0660af3e012fcb4, 204b394a23ad5e30944f23518e21e844614da2ff to before 4e3301e2a651d742c05914f6074a25b8e41bce19, 204b394a23ad5e30944f23518e21e844614da2ff to before af1759d8e6e6da9ba94f30a2f92546f406899aa7, 204b394a23ad5e30944f23518e21e844614da2ff to before 56100baa0eb7055b1026dfa73e696e8066ff71fd, 204b394a23ad5e30944f23518e21e844614da2ff to before 0c11f61a876ed6fcca53d442ed3f33ea8362a0f9
Linux

Linux · 6.0
Linux

Component: Not specified by the source
File: drivers/s390/cio/vfio_ccw_drv.c, drivers/s390/cio/vfio_ccw_fsm.c, drivers/s390/cio/vfio_ccw_ops.c, drivers/s390/cio/vfio_ccw_private.h

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

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 8.2/10) 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: 32.8 /100 (P4)
CVSS 3.1: 8.2 /10 · CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H · Source advisory
EPSS: 0.00183 · percentile 0.07366 · 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-2026-80549.html