CVE-2026-89677: Linux 7.0

CVE-2026-89677. CVSS 3.1 base score 9.8 (CRITICAL, Source advisory). EPSS 0.00553 (percentile 0.45033), scored 17-Oct-2026.

Affected technology

Linux · 64a989dbd144e0622371396461b11335459692d2 to before 033e783709ce99662cf81f6abcad746a8da9d35f, 64a989dbd144e0622371396461b11335459692d2 to before 3e2c79360c6a89975ec5b5a7d4ef937e4db91a27
Linux

Linux · 7.0
Linux

Component: Not specified by the source
File: fs/nfsd/nfs4proc.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.

Published 19-Oct-2026 10:36 UTC

CCR priority: 39.3 /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: 0.00553 · percentile 0.45033 · 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-2026-89677.html