P4Verified

CVE-2026-31680: linux kernel from 3.9 (inclusive), before 5.10.253 (exclusive), from 5.11 (inclusive), before 5.15.203 (exclusive)…

CVE-2026-31680. CVSS 3.1 base score 7.8 (HIGH, Source advisory). EPSS 0.00184 (percentile 0.0741), scored 14-Oct-2026.

Affected technology

linux kernel · from 3.9 (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 6.1.168 (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 · d3aedd5ebd4b0b925b0bcda548066803e1318499 to before 4b6798024f7b2d535f3db1002c760143cdbd1bd3, d3aedd5ebd4b0b925b0bcda548066803e1318499 to before 3c54b66c83fb8fcbde8e6a7bf90b65856e39f827, d3aedd5ebd4b0b925b0bcda548066803e1318499 to before 5a6b15f861b7c1304949e3350d23490a5fe429fd, d3aedd5ebd4b0b925b0bcda548066803e1318499 to before 6c7fbdb8ffde6413640de7cfbd7c976c353e89f8, d3aedd5ebd4b0b925b0bcda548066803e1318499 to before 8027964931785cb73d520ac70a342a3dc16c249b, d3aedd5ebd4b0b925b0bcda548066803e1318499 to before 414726b69921fe6355ae453f5b35e68dd078342a, d3aedd5ebd4b0b925b0bcda548066803e1318499 to before 572ce62778519a7d4d1c15f55dd2e45a474133c4, d3aedd5ebd4b0b925b0bcda548066803e1318499 to before 9ca562bb8e66978b53028fa32b1a190708e6a091
Linux

Linux · 3.9
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/ipv6/ip6_flowlabel.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

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: 0.00184 · percentile 0.0741 · 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-2026-31680.html