CVE-2026-89664: Linux 7.0

CVE-2026-89664. CVSS 3.1 base score 7.5 (HIGH, Source advisory). EPSS 0.00488 (percentile 0.40621), scored 17-Oct-2026.

Affected technology

Linux · 5fc51dfc2eb160bd7ab3251ab1767cacf9c8bf05 to before 5b3a7d7c23c071efe12dd1bc1d2e5f97c4892921, 5fc51dfc2eb160bd7ab3251ab1767cacf9c8bf05 to before 8215892993ea9f5231da4fa9eb42428a286fce8b
Linux

Linux · 7.0
Linux

Component: Not specified by the source
File: fs/nfsd/nfs4proc.c, fs/nfsd/nfs4xdr.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 7.5/10) rates confidentiality and integrity impact as none; 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: 30.1 /100 (P4)
CVSS 3.1: 7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · Source advisory
EPSS: 0.00488 · percentile 0.40621 · 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-2026-89664.html