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CVE-2026-64561: Linux 5.9
CVE-2026-64561. CVSS 3.1 base score 8.8 (HIGH, Source advisory). EPSS 0.00347 (percentile 0.2662), scored 15-Oct-2026.
Affected technology
Linux · f95eec9bed76d42194c23153cb1cc8f186bf91cb to before 62ef67af1878fa2cd066642f2f59e33ade95f637, f95eec9bed76d42194c23153cb1cc8f186bf91cb to before 65c4f7a1028cf01a93a2762d679c289810ede990, f95eec9bed76d42194c23153cb1cc8f186bf91cb to before 35e77467610c4a37cb0ff54ee56b85f73b1f5700, f95eec9bed76d42194c23153cb1cc8f186bf91cb to before 0026dbb7de8ea76e97d6edf42fc3cc084564e2bf, f95eec9bed76d42194c23153cb1cc8f186bf91cb to before f3477a6a4164f15287444eda685b5f6405dbd1e5, f95eec9bed76d42194c23153cb1cc8f186bf91cb to before bce0d3c26e2c761a4bf43c8949f333fc7374eb2d, f95eec9bed76d42194c23153cb1cc8f186bf91cb to before 2abd5287f08319fa35764566b15c6e22cb1068db
Linux
Linux · 5.9
Linux
Component: Not specified by the source
File: arch/x86/kvm/mmu/mmu.c, arch/x86/kvm/mmu/paging_tmpl.h
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
- 35.3 /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
- 0.00347 · percentile 0.2662 · 2026-10-15
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-16 16:55:38.548135+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-64561.html