P4Verified

CVE-2026-31414: linux kernel from 2.6.30 (inclusive), before 6.1.168 (exclusive), from 6.2 (inclusive), before 6.6.134 (exclusive)…

CVE-2026-31414. CVSS 3.1 base score 9.8 (CRITICAL, Source advisory). EPSS 0.00399 (percentile 0.3243), scored 14-Oct-2026.

Affected technology

linux kernel · from 2.6.30 (inclusive), before 6.1.168 (exclusive)
linux

linux kernel · from 6.2 (inclusive), before 6.6.134 (exclusive)
linux

linux kernel · from 6.7 (inclusive), before 6.12.81 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.18.22 (exclusive)
linux

linux kernel · from 6.19 (inclusive), before 6.19.12 (exclusive)
linux

linux kernel · 7.0 · update rc1
linux

linux kernel · 7.0 · update rc2
linux

linux kernel · 7.0 · update rc3
linux

linux kernel · 7.0 · update rc4
linux

linux kernel · 7.0 · update rc5
linux

linux kernel · 7.0 · update rc6
linux

Linux · ea781f197d6a835cbb93a0bf88ee1696296ed8aa to before 847cb7fe26c5ce5dce0d1a41fac1ea488b7f1781, ea781f197d6a835cbb93a0bf88ee1696296ed8aa to before e7ccaa0a62a8ff2be5d521299ce79390c318d306, ea781f197d6a835cbb93a0bf88ee1696296ed8aa to before 4bd1b3d839172724b33d8d02c5a4ff6a1c775417, ea781f197d6a835cbb93a0bf88ee1696296ed8aa to before b53294bff19e56ada2f230ceb8b1ffde61cc3817, ea781f197d6a835cbb93a0bf88ee1696296ed8aa to before 3dfd3f7712b5a800f2ba632179e9b738076a51f0, ea781f197d6a835cbb93a0bf88ee1696296ed8aa to before f01794106042ee27e54af6fdf5b319a2fe3df94d
Linux

Linux · 2.6.30
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: net/netfilter/nf_conntrack_expect.c, net/netfilter/nf_conntrack_helper.c, net/netfilter/nf_conntrack_netlink.c, net/netfilter/nf_conntrack_sip.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 15-Oct-2026 09:20 UTC

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: 0.00399 · percentile 0.3243 · 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
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-2026-31414.html