P4Verified

CVE-2026-23274: linux kernel from 5.7 (inclusive), before 5.10.253 (exclusive), from 5.11 (inclusive), before 5.15.203 (exclusive)…

CVE-2026-23274 affects azl3 kernel 6.6.126.1-1 on Azure Linux 3.0. CVSS 3.1 base score 7.8 (HIGH, Source advisory). EPSS 0.00176 (percentile 0.06701), scored 14-Oct-2026.

Affected technology

linux kernel · from 5.7 (inclusive), before 5.10.253 (exclusive)
linux

linux kernel · from 5.11 (inclusive), before 5.15.203 (exclusive)
linux

linux kernel · from 5.16 (inclusive), before 6.1.167 (exclusive)
linux

linux kernel · from 6.2 (inclusive), before 6.6.130 (exclusive)
linux

linux kernel · from 6.7 (inclusive), before 6.12.78 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.18.19 (exclusive)
linux

linux kernel · from 6.19 (inclusive), before 6.19.9 (exclusive)
linux

linux kernel · 7.0 · update rc1
linux

linux kernel · 7.0 · update rc2
linux

linux kernel · 7.0 · update rc3
linux

Linux · 68983a354a655c35d3fb204489d383a2a051fda7 to before 32e937dc6e97f5ed3cdfe3fc0b2b19a05e23fa44, 68983a354a655c35d3fb204489d383a2a051fda7 to before 144f88054ba0180467356f40895bd660b5dceeec, 68983a354a655c35d3fb204489d383a2a051fda7 to before 28c7cfaf0c0ab17cbd7754092116fd1af45271f9, 68983a354a655c35d3fb204489d383a2a051fda7 to before 54080355999381fed4a26129579a5765bab87491, 68983a354a655c35d3fb204489d383a2a051fda7 to before 5e7ece24c5cb75a60402aad4d803c7898ea40aa9, 68983a354a655c35d3fb204489d383a2a051fda7 to before f5ef97c13165542480a6ffdbe6f09f40bbb7cbf1, 68983a354a655c35d3fb204489d383a2a051fda7 to before f228b9ae2a7e84d1153616d8e71c4236cb1f1309, 68983a354a655c35d3fb204489d383a2a051fda7 to before 329f0b9b48ee6ab59d1ab72fef55fe8c6463a6cf
Linux

Linux · 5.7
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

SIMATIC S7-1500 TM MFP - GNU/Linux subsystem · 0 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: net/netfilter/xt_IDLETIMER.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

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: 0.00176 · percentile 0.06701 · 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-2026-23274.html