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CVE-2026-52946: linux kernel 2.6.12; +5 more affected products

CVE-2026-52946. CVSS 3.1 base score 7.5 (HIGH, Source advisory). EPSS 0.00467 (percentile 0.38892), scored 14-Oct-2026.

Affected technology

linux kernel · from 2.6.12.1 (inclusive), before 5.10.259 (exclusive)
linux

linux kernel · from 5.11 (inclusive), before 5.15.210 (exclusive)
linux

linux kernel · from 5.16 (inclusive), before 6.1.176 (exclusive)
linux

linux kernel · from 6.2 (inclusive), before 6.6.143 (exclusive)
linux

linux kernel · from 6.7 (inclusive), before 6.12.94 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.18.36 (exclusive)
linux

linux kernel · from 6.19 (inclusive), before 7.0.13 (exclusive)
linux

linux kernel · from 7.1 (inclusive), before 7.1.1 (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 · 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 54626335ea4174ab2d9a183b511d825f6765e47b, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 897d6a7247739fb1528f98c575df4f2e5de7f994, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 32dbd5ce4be3a3ed7e00f8af18795cc84fc50a33, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before b5fa9e32fb6718f70c986ee14dd5d01b4846f331, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 1bee417678f1135e35b25a37734db46aa94258d2, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 20a93e397abe850c49b6fa0e8cc827b5f634a8f5, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before bfcc8e8d8a495bb34cae9e620adfb75fb13a3954, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 36c1b57b2ecf3c61ac93f5f07bd29b6f21e226ed, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 00633c4683828acd5256fa8d5163f440d74bbe71
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: fs/fcntl.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 7.5/10) 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

CWE
CWE-667
CCR priority
30.1 /100 (P4)
CVSS 3.1
7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · Source advisory
EPSS
0.00467 · percentile 0.38892 · 2026-10-14
KEV
no

Provenance

Stable permalink: https://cybercodered.org/item/cve-cve-2026-52946.html