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CVE-2026-90191: Linux 6.18
CVE-2026-90191. CVSS 3.1 base score 8.4 (HIGH, Source advisory). EPSS 0.00194 (percentile 0.08442), scored 17-Oct-2026.
Affected technology
Linux · bf3022a4eb119c6b4e3424d6b19d8bfdfbc9bb57 to before cbc24bce70dfd91c7b2f53b4fa896e9a4b6d6a6b, bf3022a4eb119c6b4e3424d6b19d8bfdfbc9bb57 to before c7bc5e7677bcda7a446d63b989cfaa3fe91d6b76, bf3022a4eb119c6b4e3424d6b19d8bfdfbc9bb57 to before 11d5af151bcbe78f5a579e0faecd3be9cea0399a
Linux
Linux · 6.18
Linux
Component: Not specified by the source
File: drivers/mailbox/riscv-sbi-mpxy-mbox.c
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 8.4/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- CCR priority
- 33.6 /100 (P4)
- CVSS 3.1
- 8.4 /10 · CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · Source advisory
- EPSS
- 0.00194 · percentile 0.08442 · 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-2026-90191.html