CVE-2026-89632: Linux 6.6.32 to before 7.2.4, 6.6.32 to before 7.3-rc1

CVE-2026-89632 affects azl3 kernel 6.6.152.1-1 on Azure Linux 3.0. CVSS 3.1 base score 8.2 (HIGH, Source advisory). EPSS 0.00452 (percentile 0.37767), scored 15-Oct-2026.

Affected technology

Linux · a158bb66b1373866d9fd5997565a58a573085539 to before 711cf71300d7992f450600df8864917d3538679f, a158bb66b1373866d9fd5997565a58a573085539 to before 05f78e6cf34ea3a285053bd5999e08e8ac298bd5
Linux

Linux · 6.6.32 to before 7.2.4, 6.6.32 to before 7.3-rc1
Linux

Component: Not specified by the source
File: fs/smb/client/smb2inode.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 8.2/10) rates confidentiality impact as low; integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 16-Oct-2026 20:21 UTC

Product: azl3 kernel 6.6.152.1-1 on Azure Linux 3.0
CCR priority: 32.9 /100 (P4)
CVSS 3.1: 8.2 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H · Source advisory
EPSS: 0.00452 · percentile 0.37767 · 2026-10-15
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-16 09:43:43.583708+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 2026-10-16 20:20:42.059737+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-89632.html