P4Verified

CVE-2026-23255: linux kernel 2.6.12; +5 more affected products

CVE-2026-23255 affects azl3 kernel 6.6.126.1-1 on Azure Linux 3.0. CVSS 3.1 base score 5.5 (MEDIUM, NVD). EPSS 0.00114 (percentile 0.01395), scored 14-Oct-2026.

Affected technology

linux kernel · from 2.6.12.1 (inclusive), before 6.6.136 (exclusive)
linux

linux kernel · from 6.7 (inclusive), before 6.12.80 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.18.10 (exclusive)
linux

linux kernel · 2.6.12
linux

linux kernel · 2.6.12 · update rc2
linux

linux kernel · 2.6.12 · update rc3
linux

linux kernel · 2.6.12 · update rc4
linux

linux kernel · 2.6.12 · update rc5
linux

linux kernel · 6.19 · update rc1
linux

linux kernel · 6.19 · update rc2
linux

linux kernel · 6.19 · update rc3
linux

linux kernel · 6.19 · update rc4
linux

linux kernel · 6.19 · update rc5
linux

linux kernel · 6.19 · update rc6
linux

linux kernel · 6.19 · update rc7
linux

linux kernel · 6.19 · update rc8
linux

Linux · 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before e974a10a52618f7f57a4bce173a0ed96acd4e5dc, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 002a73470b56848e4c81efeaaedd471e92d66d8d, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before dcefd3f0b9ed8288654c75254bdcee8e1085e861, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 589a530ae44d0c80f523fcfd1a15af8087f27d35, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before f613e8b4afea0cd17c7168e8b00e25bc8d33175d
Linux

Linux · 2.6.12
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 · V3.1.7 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 · V3.1.7 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 · V3.1.7 to before *
Siemens

Component: Not specified by the source
File: net/core/net-procfs.c

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

What an attacker can do

NVD’s CVSS 3.1 assessment (base score 5.5/10) rates confidentiality and integrity impact as none; 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: 22.0 /100 (P4)
CVSS 3.1: 5.5 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · NVD
EPSS: 0.00114 · percentile 0.01395 · 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-2026-23255.html