CVE-2026-43027: linux kernel from 4.14 (inclusive), before 5.10.253 (exclusive), from 5.11 (inclusive), before 5.15.203 (exclusive)…

Affected technology

linux kernel · from 4.14 (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 · ac7b848390036dadd4351899d2a23748075916bd to before 5cf28d5c8dcbbe8af6d3b145babe491906d7bad1, ac7b848390036dadd4351899d2a23748075916bd to before 504ba4168466c91210c45acdc332479cfd5f2da6, ac7b848390036dadd4351899d2a23748075916bd to before dc1739eff48e34cc71d4e2f03715493fbcebd8af, ac7b848390036dadd4351899d2a23748075916bd to before 2cf2737c85a2ba2b52024dafe68ffad2676f97be, ac7b848390036dadd4351899d2a23748075916bd to before 2c16e4d64dd91227742dfe196a3e7b0568bef65a, ac7b848390036dadd4351899d2a23748075916bd to before 620f3d14c1ef51d425060a3056ad8dbae8f998a3, ac7b848390036dadd4351899d2a23748075916bd to before 90bd7e8501349db3006d21fbc09df9ffcb172965, ac7b848390036dadd4351899d2a23748075916bd to before a242a9ae58aa46ff7dae51ce64150a93957abe65
Linux

Linux · 4.14
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_helper.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 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.