P4Verified

CVE-2026-90104: Linux 2.6.31

CVE-2026-90104 affects azl3 kernel 6.6.150.1-1 on Azure Linux 3.0. CVSS 3.1 base score 9.8 (CRITICAL, Source advisory). EPSS 0.00553 (percentile 0.44874), scored 14-Oct-2026.

Affected technology

Linux · 4aece6a19cf7f474f15eb861ba74db4479884ce3 to before f4d23937e1c41995c2f54af26c89b5e48a41c299, 4aece6a19cf7f474f15eb861ba74db4479884ce3 to before f31f3c042e024aef437cda42f0424ae8d4594b6c, 4aece6a19cf7f474f15eb861ba74db4479884ce3 to before 8fa4804fe62ca4155a2d8fc2789d630376cbf2fc
Linux

Linux · 2.6.31
Linux

Component: Not specified by the source
File: fs/nfs/callback_xdr.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 15-Oct-2026 11:57 UTC

Product: azl3 kernel 6.6.150.1-1 on Azure Linux 3.0
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 0.44874 · 2026-10-14
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-15 09:24:28.011626+00:00 UTC
GitHub Advisory Database · Source record · observed 2026-10-15 12:39:55.759815+00:00 UTC
Microsoft MSRC Security Update Guide (CVRF) · Source record · observed 2026-10-04 07:08:49.022374+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-15 11:57:11.427822+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-90104.html