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CVE-2026-89636: Linux 5.0
CVE-2026-89636. CVSS 3.1 base score 9.8 (CRITICAL, Source advisory). EPSS 0.00663 (percentile 0.50612), scored 15-Oct-2026.
Affected technology
Linux · 54be1f6c1c37498bba557049df646cc239fa37e3 to before 14f60e959b5ac813715ff72e127beb3584ddabf6, 54be1f6c1c37498bba557049df646cc239fa37e3 to before 3ff9462bb7a06d8d32a1dc02d39580b078ec9e55, 54be1f6c1c37498bba557049df646cc239fa37e3 to before 7507bd1885643d0461a6017767492450af1ce2a3, 54be1f6c1c37498bba557049df646cc239fa37e3 to before 9ab46a13798a61d9d020b01d4e57efdabe6624fa, 54be1f6c1c37498bba557049df646cc239fa37e3 to before 5baab40404a9393bcc0b7b8f1950bf2c307e0984, 54be1f6c1c37498bba557049df646cc239fa37e3 to before b1b741cf8e7ce1b91d937e23decd3d3358748700
Linux
Linux · 5.0
Linux
Component: Not specified by the source
File: fs/smb/client/dfs_cache.c
Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required
What an attacker can do
Source advisory’s CVSS 3.1 assessment (base score 9.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- CCR priority
- 39.4 /100 (P4)
- CVSS 3.1
- 9.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · Source advisory
- EPSS
- 0.00663 · percentile 0.50612 · 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-2026-89636.html