P4Verified

CVE-2026-23243: linux kernel 2.6.24; +4 more affected products

CVE-2026-23243 affects azl3 kernel 6.6.126.1-1 on Azure Linux 3.0. CVSS 3.1 base score 7.8 (HIGH, Source advisory). EPSS 0.00131 (percentile 0.02358), scored 14-Oct-2026.

Affected technology

linux kernel · from 2.6.24.1 (inclusive), before 5.10.252 (exclusive)
linux

linux kernel · from 5.11 (inclusive), before 5.15.202 (exclusive)
linux

linux kernel · from 5.16 (inclusive), before 6.1.165 (exclusive)
linux

linux kernel · from 6.2 (inclusive), before 6.6.128 (exclusive)
linux

linux kernel · from 6.7 (inclusive), before 6.12.75 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.18.14 (exclusive)
linux

linux kernel · from 6.19 (inclusive), before 6.19.4 (exclusive)
linux

linux kernel · 2.6.24
linux

Linux · 2be8e3ee8efd6f99ce454115c29d09750915021a to before 1371ef6b1ecf3676b8942f5dfb3634fb0648128e, 2be8e3ee8efd6f99ce454115c29d09750915021a to before 362e45fd9069ffa1523f9f1633b606ebf72060d7, 2be8e3ee8efd6f99ce454115c29d09750915021a to before 6eb2919474ca105c5b13d19574e25f0ddcf19ca2, 2be8e3ee8efd6f99ce454115c29d09750915021a to before a6a3e4af10993cb9e4b8f0548680aba0ab5f3b0d, 2be8e3ee8efd6f99ce454115c29d09750915021a to before 9c80d688f402539dfc8f336de1380d6b4ee14316, 2be8e3ee8efd6f99ce454115c29d09750915021a to before 205955f29c26330b1dc7fdeadd5bb97c38e26f56, 2be8e3ee8efd6f99ce454115c29d09750915021a to before 52ab82cc5cf8ada5c3fb6ffe8f32fdb2fc27a34b, 2be8e3ee8efd6f99ce454115c29d09750915021a to before 5551b02fdbfd85a325bb857f3a8f9c9f33397ed2
Linux

Linux · 2.6.24
Linux

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.6 to before *
Siemens

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.5 to before *
Siemens

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.7 to before *
Siemens

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.6 to before *
Siemens

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.5 to before *
Siemens

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.7 to before *
Siemens

SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.6 to before *
Siemens

SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.5 to before *
Siemens

SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.7 to before *
Siemens

Component: Not specified by the source
File: drivers/infiniband/core/user_mad.c

Attack conditions (Source advisory, CVSS 3.1): Local · Low privileges required · No user interaction required

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 7.8/10) 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 09:20 UTC

CWE: CWE-787
Product: azl3 kernel 6.6.126.1-1 on Azure Linux 3.0
CCR priority: 31.2 /100 (P4)
CVSS 3.1: 7.8 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · Source advisory
EPSS: 0.00131 · percentile 0.02358 · 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 10:43:56.988652+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 09:18:22.406219+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-23243.html