CVE-2026-89479: Linux 2.6.12

CVE-2026-89479 affects azl3 kernel 6.6.152.1-1 on Azure Linux 3.0. CVSS 3.1 base score 9.8 (msrc). EPSS 0.005 (percentile 0.40681), scored 05-Oct-2026.

Affected technology

Linux · 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 7d970353eeb98f46a3b9dc602850e4f6336a9889, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 09c3b193a3e8fe53e1f416e2f8e3283d2a785405, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before ed85fe91a61bc0e0da6b585c07102b20f4cc65a0, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 5c0b2dbbdafc9eeeb11fffe1e46551fc3b55d8ee, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before ee3f04cf566f6041aa9a0360494fd8db5ade383a, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before fa306a40e716c5abcd967475459ce1ebd56e5115, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before a713e1b3a265f180ad25a08e17be15d67a2f7149, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 47e15a8d12e366d0d261bcbc394394f44418938d
Linux

Linux · 2.6.12
Linux

Component: Not specified by the source
File: net/sctp/sm_sideeffect.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 16-Oct-2026 20:21 UTC

Product: azl3 kernel 6.6.152.1-1 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: 0.005 · percentile 0.41394 · 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-2026-89479.html