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CVE-2026-80921: Linux 4.20
CVE-2026-80921. CVSS 3.1 base score 8.8 (HIGH, Source advisory). EPSS 0.00126 (percentile 0.0204), scored 17-Oct-2026.
Affected technology
Linux · 6b79de4b056e5a2febc0c61233d8f0ad7868e49c to before d110b3297f11ef227098b8a82ade2d5f123b7d2f, 6b79de4b056e5a2febc0c61233d8f0ad7868e49c to before 59d51550b5cb916bda037673a721a404b3b47a0d, 6b79de4b056e5a2febc0c61233d8f0ad7868e49c to before f6079dca67eccb5eabef9f72437948c66dc5131f, 6b79de4b056e5a2febc0c61233d8f0ad7868e49c to before 087c19cc60a8caa1a08e1e434c8be2caf6c27733, 6b79de4b056e5a2febc0c61233d8f0ad7868e49c to before 7d23489f51109e3ebba5b5db8c5f0185af7b7fdf, 6b79de4b056e5a2febc0c61233d8f0ad7868e49c to before 935eeba276012916c76243e5cbb843efd8fdb75d, 6b79de4b056e5a2febc0c61233d8f0ad7868e49c to before d4bcd2df6d0d2af916b4fe1a533958778ea7c45b, 6b79de4b056e5a2febc0c61233d8f0ad7868e49c to before 29b4f7bc2991313bd3e6f6fb8fdf1b173f086dd6, 6b79de4b056e5a2febc0c61233d8f0ad7868e49c to before 34d5b5b646c91cfb9338d7a12c955a70ffb8c66b
Linux
Linux · 4.20
Linux
Component: Not specified by the source
File: arch/s390/kvm/vsie.c
Attack conditions (Source advisory, CVSS 3.1): Local · Low privileges required · No user interaction required
What an attacker can do
Source advisory’s CVSS 3.1 assessment (base score 8.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- CCR priority
- 35.2 /100 (P4)
- CVSS 3.1
- 8.8 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H · Source advisory
- EPSS
- 0.00126 · percentile 0.0204 · 2026-10-17
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-19 10:33:46.008150+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-80921.html