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CVE-2026-31682

Fixed in a distro release EPSS <1%CVSS 9.1

In the Linux kernel, the following vulnerability has been resolved: bridge: br_nd_send: linearize skb before parsing ND options br_nd_send() parses neighbour discovery options from ns->opt[] and assumes that these options are in the linear part of request. Its callers only guarantee that the ICMPv6 header and target address are available, so the option area can still be non-linear. Parsing ns->opt[] in that case can access data past the linear buffer. Linearize request before option parsing and derive ns from the linear network header.

Published 2026-04-25 · CVE record · OSV

Products: Linux, Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP, Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP

Distro releases

ReleasePackageFixed in
Debian 12linux6.1.170-1
Debian 13linux6.12.85-1
Debian 14linux6.19.12-1
SUSE Linux Enterprise High Availability Extension 15 SP7kernel-default6.4.0-150700.53.55.1
SUSE Linux Enterprise Live Patching 15 SP7kernel-default6.4.0-150700.53.55.1
SUSE Linux Enterprise Live Patching 15 SP7kernel-livepatch-SLE15-SP7_Update_151-150700.15.3.1
SUSE Linux Enterprise Module for Basesystem 15 SP7kernel-64kb6.4.0-150700.53.55.1
SUSE Linux Enterprise Module for Basesystem 15 SP7kernel-default6.4.0-150700.53.55.1
SUSE Linux Enterprise Module for Basesystem 15 SP7kernel-default-base6.4.0-150700.53.55.1.150700.17.33.1
SUSE Linux Enterprise Module for Basesystem 15 SP7kernel-source6.4.0-150700.53.55.1
SUSE Linux Enterprise Module for Basesystem 15 SP7kernel-zfcpdump6.4.0-150700.53.55.1
SUSE Linux Enterprise Module for Development Tools 15 SP7kernel-docs6.4.0-150700.53.55.1
SUSE Linux Enterprise Module for Development Tools 15 SP7kernel-obs-build6.4.0-150700.53.55.1
SUSE Linux Enterprise Module for Development Tools 15 SP7kernel-source6.4.0-150700.53.55.1
SUSE Linux Enterprise Module for Development Tools 15 SP7kernel-syms6.4.0-150700.53.55.1
SUSE Linux Enterprise Module for Legacy 15 SP7kernel-default6.4.0-150700.53.55.1
SUSE Linux Enterprise Module for Public Cloud 15 SP7kernel-azure6.4.0-150700.53.55.1
SUSE Linux Enterprise Workstation Extension 15 SP7kernel-default6.4.0-150700.53.55.1
SUSE Linux Micro Extras 6.2kernel-obs-build6.12.0-160000.33.1
SUSE Linux Micro Extras 6.2kernel-syms6.12.0-160000.33.1
Ubuntu 16.04 LTSlinux-hwe-edgeno fix
Ubuntu 18.04 LTSlinux-aws-5.0no fix
Ubuntu 18.04 LTSlinux-aws-5.3no fix
Ubuntu 18.04 LTSlinux-azureno fix
Ubuntu 18.04 LTSlinux-azure-5.3no fix
Ubuntu 18.04 LTSlinux-azure-edgeno fix
Ubuntu 18.04 LTSlinux-gcpno fix
Ubuntu 18.04 LTSlinux-gcp-5.3no fix
Ubuntu 18.04 LTSlinux-gke-4.15no fix
Ubuntu 18.04 LTSlinux-gke-5.4no fix
Ubuntu 18.04 LTSlinux-gkeop-5.4no fix
Ubuntu 18.04 LTSlinux-hweno fix
Ubuntu 18.04 LTSlinux-hwe-edgeno fix
Ubuntu 18.04 LTSlinux-oemno fix
Ubuntu 18.04 LTSlinux-oracle-5.0no fix
Ubuntu 18.04 LTSlinux-oracle-5.3no fix
Ubuntu 20.04 LTSlinux-aws-5.11no fix
Ubuntu 20.04 LTSlinux-aws-5.13no fix
Ubuntu 20.04 LTSlinux-aws-5.8no fix
Ubuntu 20.04 LTSlinux-azure-5.11no fix
Ubuntu 20.04 LTSlinux-azure-5.13no fix
Ubuntu 20.04 LTSlinux-azure-5.8no fix
Ubuntu 20.04 LTSlinux-azure-fdeno fix
Ubuntu 20.04 LTSlinux-gcp-5.11no fix
Ubuntu 20.04 LTSlinux-gcp-5.13no fix
Ubuntu 20.04 LTSlinux-gcp-5.8no fix
Ubuntu 20.04 LTSlinux-gkeno fix
Ubuntu 20.04 LTSlinux-gke-5.15no fix
Ubuntu 20.04 LTSlinux-gkeopno fix
Ubuntu 20.04 LTSlinux-gkeop-5.15no fix
Ubuntu 20.04 LTSlinux-hwe-5.11no fix
Ubuntu 20.04 LTSlinux-hwe-5.13no fix
Ubuntu 20.04 LTSlinux-hwe-5.8no fix
Ubuntu 20.04 LTSlinux-intel-5.13no fix
Ubuntu 20.04 LTSlinux-oem-5.10no fix
Ubuntu 20.04 LTSlinux-oem-5.13no fix
Ubuntu 20.04 LTSlinux-oem-5.14no fix
Ubuntu 20.04 LTSlinux-oem-5.6no fix
Ubuntu 20.04 LTSlinux-oracle-5.11no fix
Ubuntu 20.04 LTSlinux-oracle-5.13no fix
Ubuntu 20.04 LTSlinux-oracle-5.8no fix
Ubuntu 20.04 LTSlinux-raspi2no fix
Ubuntu 20.04 LTSlinux-riscvno fix
Ubuntu 20.04 LTSlinux-riscv-5.11no fix
Ubuntu 20.04 LTSlinux-riscv-5.8no fix
Ubuntu 22.04 LTSlinux5.15.0-185.195
Ubuntu 22.04 LTSlinux-allwinner-5.19no fix
Ubuntu 22.04 LTSlinux-aws5.15.0-1111.118
Ubuntu 22.04 LTSlinux-aws-5.19no fix
Ubuntu 22.04 LTSlinux-aws-6.2no fix
Ubuntu 22.04 LTSlinux-aws-6.5no fix
Ubuntu 22.04 LTSlinux-aws-6.86.8.0-1060.63~22.04.1
Ubuntu 22.04 LTSlinux-azure5.15.0-1116.125
Ubuntu 22.04 LTSlinux-azure-5.19no fix
Ubuntu 22.04 LTSlinux-azure-6.2no fix
Ubuntu 22.04 LTSlinux-azure-6.5no fix
Ubuntu 22.04 LTSlinux-azure-6.86.8.0-1063.71~22.04.1
Ubuntu 22.04 LTSlinux-azure-fde5.15.0-1116.125
Ubuntu 22.04 LTSlinux-azure-fde-5.19no fix
Ubuntu 22.04 LTSlinux-azure-fde-6.2no fix
Ubuntu 22.04 LTSlinux-azure-fde-6.86.8.0-1062.69~22.04.1
Ubuntu 22.04 LTSlinux-gcp5.15.0-1111.121
Ubuntu 22.04 LTSlinux-gcp-5.19no fix
Ubuntu 22.04 LTSlinux-gcp-6.2no fix
Ubuntu 22.04 LTSlinux-gcp-6.5no fix
Ubuntu 22.04 LTSlinux-gcp-6.86.8.0-1063.69~22.04.1
Ubuntu 22.04 LTSlinux-gke5.15.0-1107.113
Ubuntu 22.04 LTSlinux-gkeop5.15.0-1094.102
Ubuntu 22.04 LTSlinux-hwe-5.19no fix
Ubuntu 22.04 LTSlinux-hwe-6.2no fix
Ubuntu 22.04 LTSlinux-hwe-6.5no fix
Ubuntu 22.04 LTSlinux-hwe-6.86.8.0-136.136~22.04.1
Ubuntu 22.04 LTSlinux-ibm5.15.0-1105.109
Ubuntu 22.04 LTSlinux-ibm-6.86.8.0-1060.61~22.04.1
Ubuntu 22.04 LTSlinux-intel-iot-realtimeno fix
Ubuntu 22.04 LTSlinux-intel-iotg5.15.0-1106.112
Ubuntu 22.04 LTSlinux-kvm5.15.0-1103.108
Ubuntu 22.04 LTSlinux-lowlatency5.15.0-183.193
Ubuntu 22.04 LTSlinux-lowlatency-hwe-5.19no fix
Ubuntu 22.04 LTSlinux-lowlatency-hwe-6.2no fix
Ubuntu 22.04 LTSlinux-lowlatency-hwe-6.5no fix
Ubuntu 22.04 LTSlinux-lowlatency-hwe-6.86.8.0-134.134.1~22.04.1
Ubuntu 22.04 LTSlinux-nvidia5.15.0-1106.107
Ubuntu 22.04 LTSlinux-nvidia-6.2no fix
Ubuntu 22.04 LTSlinux-nvidia-6.5no fix
Ubuntu 22.04 LTSlinux-nvidia-6.86.8.0-1058.61~22.04.1
Ubuntu 22.04 LTSlinux-nvidia-tegra5.15.0-1063.63
Ubuntu 22.04 LTSlinux-nvidia-tegra-igx5.15.0-1052.52
Ubuntu 22.04 LTSlinux-oem-5.17no fix
Ubuntu 22.04 LTSlinux-oem-6.0no fix
Ubuntu 22.04 LTSlinux-oem-6.1no fix
Ubuntu 22.04 LTSlinux-oem-6.5no fix
Ubuntu 22.04 LTSlinux-oracle5.15.0-1108.114
Ubuntu 22.04 LTSlinux-oracle-6.5no fix
Ubuntu 22.04 LTSlinux-oracle-6.86.8.0-1057.58~22.04.1
Ubuntu 22.04 LTSlinux-raspi5.15.0-1105.108
Ubuntu 22.04 LTSlinux-realtimeno fix
Ubuntu 22.04 LTSlinux-riscvno fix
Ubuntu 22.04 LTSlinux-riscv-5.19no fix
Ubuntu 22.04 LTSlinux-riscv-6.5no fix
Ubuntu 22.04 LTSlinux-riscv-6.86.8.0-134.134~22.04.1
Ubuntu 22.04 LTSlinux-starfive-5.19no fix
Ubuntu 22.04 LTSlinux-starfive-6.2no fix
Ubuntu 22.04 LTSlinux-starfive-6.5no fix
Ubuntu 22.04 LTSlinux-xilinx-zynqmp5.15.0-1074.78
Ubuntu 24.04 LTSlinux6.8.0-134.134
Ubuntu 24.04 LTSlinux-aws6.8.0-1060.63
Ubuntu 24.04 LTSlinux-aws-6.14no fix
Ubuntu 24.04 LTSlinux-aws-6.176.17.0-1019.19~24.04.1
Ubuntu 24.04 LTSlinux-azure6.8.0-1063.71
Ubuntu 24.04 LTSlinux-azure-6.11no fix
Ubuntu 24.04 LTSlinux-azure-6.14no fix
Ubuntu 24.04 LTSlinux-azure-6.176.17.0-1021.21~24.04.1
Ubuntu 24.04 LTSlinux-azure-fde6.8.0-1062.69
Ubuntu 24.04 LTSlinux-azure-fde-6.14no fix
Ubuntu 24.04 LTSlinux-azure-fde-6.176.17.0-1018.18~24.04.1
Ubuntu 24.04 LTSlinux-azure-nvidiano fix
Ubuntu 24.04 LTSlinux-azure-nvidia-6.14no fix
Ubuntu 24.04 LTSlinux-gcp6.8.0-1063.69
Ubuntu 24.04 LTSlinux-gcp-6.11no fix
Ubuntu 24.04 LTSlinux-gcp-6.14no fix
Ubuntu 24.04 LTSlinux-gcp-6.176.17.0-1020.22~24.04.1
Ubuntu 24.04 LTSlinux-gke6.8.0-1058.64
Ubuntu 24.04 LTSlinux-gkeop6.8.0-1045.48
Ubuntu 24.04 LTSlinux-hwe-6.11no fix
Ubuntu 24.04 LTSlinux-hwe-6.14no fix
Ubuntu 24.04 LTSlinux-hwe-6.176.17.0-40.40~24.04.1
Ubuntu 24.04 LTSlinux-ibm6.8.0-1060.61
Ubuntu 24.04 LTSlinux-lowlatency6.8.0-134.134.1
Ubuntu 24.04 LTSlinux-lowlatency-hwe-6.11no fix
Ubuntu 24.04 LTSlinux-nvidia6.8.0-1058.61
Ubuntu 24.04 LTSlinux-nvidia-6.11no fix
Ubuntu 24.04 LTSlinux-nvidia-6.176.17.0-1026.26
Ubuntu 24.04 LTSlinux-nvidia-lowlatency6.8.0-1058.61.1
Ubuntu 24.04 LTSlinux-nvidia-tegra6.8.0-1029.30
Ubuntu 24.04 LTSlinux-oem-6.11no fix
Ubuntu 24.04 LTSlinux-oem-6.14no fix
Ubuntu 24.04 LTSlinux-oem-6.176.17.0-1028.28
Ubuntu 24.04 LTSlinux-oem-6.8no fix
Ubuntu 24.04 LTSlinux-oracle6.8.0-1057.58
Ubuntu 24.04 LTSlinux-oracle-6.14no fix
Ubuntu 24.04 LTSlinux-oracle-6.176.17.0-1018.18~24.04.1
Ubuntu 24.04 LTSlinux-raspi6.8.0-1060.64
Ubuntu 24.04 LTSlinux-raspi-realtimeno fix
Ubuntu 24.04 LTSlinux-realtimeno fix
Ubuntu 24.04 LTSlinux-riscvno fix
Ubuntu 24.04 LTSlinux-riscv-6.14no fix
Ubuntu 24.04 LTSlinux-riscv-6.17no fix
Ubuntu 24.04 LTSlinux-xilinx6.8.0-1032.33
Ubuntu 25.10linux6.17.0-40.40
Ubuntu 25.10linux-aws6.17.0-1019.19
Ubuntu 25.10linux-azureno fix
Ubuntu 25.10linux-azure-fdeno fix
Ubuntu 25.10linux-gcp6.17.0-1020.22
Ubuntu 25.10linux-oracle6.17.0-1018.18
Ubuntu 25.10linux-raspi6.17.0-1021.21
Ubuntu 25.10linux-realtime6.17.0-1017.19
Ubuntu 25.10linux-riscv6.17.0-40.40.1
Ubuntu 26.04 LTSlinux-nvidia7.0.0-1006.6
Ubuntu Nvidia-BlueField 22.04 LTSlinux-bluefield5.15.0-1095.97
Ubuntu Nvidia-BlueField 24.04 LTSlinux-bluefield6.8.0-1026.30
Ubuntu Pro 14.04 LTSlinux-azure4.15.0-1205.220~14.04.1
Ubuntu Pro 16.04 LTSlinux-aws-hwe4.15.0-1194.207~16.04.1
Ubuntu Pro 16.04 LTSlinux-azure4.15.0-1204.219~16.04.1
Ubuntu Pro 16.04 LTSlinux-gcp4.15.0-1187.204~16.04.1
Ubuntu Pro 16.04 LTSlinux-hwe4.15.0-253.265~16.04.1
Ubuntu Pro 16.04 LTSlinux-oracle4.15.0-1156.167~16.04.1
Ubuntu Pro 18.04 LTSlinux4.15.0-253.265
Ubuntu Pro 18.04 LTSlinux-aws4.15.0-1194.207
Ubuntu Pro 18.04 LTSlinux-aws-5.45.4.0-1161.172~18.04.1
Ubuntu Pro 18.04 LTSlinux-azure-4.154.15.0-1204.219
Ubuntu Pro 18.04 LTSlinux-azure-5.45.4.0-1166.172~18.04.1
Ubuntu Pro 18.04 LTSlinux-gcp-4.154.15.0-1187.204
Ubuntu Pro 18.04 LTSlinux-gcp-5.45.4.0-1164.173~18.04.1
Ubuntu Pro 18.04 LTSlinux-hwe-5.45.4.0-233.253~18.04.1
Ubuntu Pro 18.04 LTSlinux-ibm-5.45.4.0-1107.112~18.04.1
Ubuntu Pro 18.04 LTSlinux-kvm4.15.0-1176.181
Ubuntu Pro 18.04 LTSlinux-oracle4.15.0-1156.167
Ubuntu Pro 18.04 LTSlinux-oracle-5.45.4.0-1159.169~18.04.1
Ubuntu Pro 18.04 LTSlinux-raspi-5.45.4.0-1144.157~18.04.1
Ubuntu Pro 20.04 LTSlinux5.4.0-233.253
Ubuntu Pro 20.04 LTSlinux-aws5.4.0-1161.172
Ubuntu Pro 20.04 LTSlinux-aws-5.155.15.0-1111.118~20.04.1
Ubuntu Pro 20.04 LTSlinux-azure5.4.0-1166.172
Ubuntu Pro 20.04 LTSlinux-azure-5.155.15.0-1116.125~20.04.1
Ubuntu Pro 20.04 LTSlinux-azure-fde-5.155.15.0-1116.125~20.04.1
Ubuntu Pro 20.04 LTSlinux-bluefield5.4.0-1120.127
Ubuntu Pro 20.04 LTSlinux-gcp5.4.0-1164.173
Ubuntu Pro 20.04 LTSlinux-gcp-5.155.15.0-1111.121~20.04.1
Ubuntu Pro 20.04 LTSlinux-hwe-5.155.15.0-185.195~20.04.1
Ubuntu Pro 20.04 LTSlinux-ibm5.4.0-1107.112
Ubuntu Pro 20.04 LTSlinux-ibm-5.155.15.0-1105.109~20.04.1
Ubuntu Pro 20.04 LTSlinux-intel-iotg-5.155.15.0-1106.112~20.04.1
Ubuntu Pro 20.04 LTSlinux-iot5.4.0-1065.68
Ubuntu Pro 20.04 LTSlinux-kvm5.4.0-1148.157
Ubuntu Pro 20.04 LTSlinux-lowlatency-hwe-5.155.15.0-183.193~20.04.1
Ubuntu Pro 20.04 LTSlinux-nvidia-tegra-5.155.15.0-1063.63~20.04.1
Ubuntu Pro 20.04 LTSlinux-oracle5.4.0-1159.169
Ubuntu Pro 20.04 LTSlinux-oracle-5.155.15.0-1108.114~20.04.1
Ubuntu Pro 20.04 LTSlinux-raspi5.4.0-1144.157
Ubuntu Pro 20.04 LTSlinux-riscv-5.155.15.0-1105.109~20.04.1
Ubuntu Pro 20.04 LTSlinux-xilinx-zynqmp5.4.0-1079.83
Ubuntu Pro FIPS-preview 22.04 LTSlinux-aws-fipsno fix
Ubuntu Pro FIPS-preview 22.04 LTSlinux-azure-fipsno fix
Ubuntu Pro FIPS-preview 22.04 LTSlinux-fipsno fix
Ubuntu Pro FIPS-preview 22.04 LTSlinux-gcp-fipsno fix
Ubuntu Pro FIPS-updates 18.04 LTSlinux-aws-fips4.15.0-2132.138
Ubuntu Pro FIPS-updates 18.04 LTSlinux-azure-fips4.15.0-2112.118
Ubuntu Pro FIPS-updates 18.04 LTSlinux-fips4.15.0-1149.161
Ubuntu Pro FIPS-updates 18.04 LTSlinux-gcp-fips4.15.0-2095.101
Ubuntu Pro FIPS-updates 20.04 LTSlinux-aws-fips5.4.0-1161.172+fips1
Ubuntu Pro FIPS-updates 20.04 LTSlinux-azure-fips5.4.0-1166.172+fips1
Ubuntu Pro FIPS-updates 20.04 LTSlinux-fips5.4.0-1135.145
Ubuntu Pro FIPS-updates 20.04 LTSlinux-gcp-fips5.4.0-1164.173+fips1
Ubuntu Pro FIPS-updates 22.04 LTSlinux-aws-fips5.15.0-1111.118+fips1
Ubuntu Pro FIPS-updates 22.04 LTSlinux-azure-fips5.15.0-1116.125+fips1
Ubuntu Pro FIPS-updates 22.04 LTSlinux-fips5.15.0-185.195+fips1
Ubuntu Pro FIPS-updates 22.04 LTSlinux-gcp-fips5.15.0-1111.121+fips1
Ubuntu Pro FIPS-updates 24.04 LTSlinux-aws-fips6.8.0-1060.63+fips1
Ubuntu Pro FIPS-updates 24.04 LTSlinux-azure-fips6.8.0-1062.69+fips1
Ubuntu Pro FIPS-updates 24.04 LTSlinux-fips6.8.0-134.134+fips1
Ubuntu Pro FIPS-updates 24.04 LTSlinux-gcp-fips6.8.0-1063.69+fips1
Ubuntu Pro FIPS 18.04 LTSlinux-aws-fipsno fix
Ubuntu Pro FIPS 18.04 LTSlinux-azure-fipsno fix
Ubuntu Pro FIPS 18.04 LTSlinux-fipsno fix
Ubuntu Pro FIPS 18.04 LTSlinux-gcp-fipsno fix
Ubuntu Pro FIPS 20.04 LTSlinux-aws-fipsno fix
Ubuntu Pro FIPS 20.04 LTSlinux-azure-fipsno fix
Ubuntu Pro FIPS 20.04 LTSlinux-fipsno fix
Ubuntu Pro FIPS 20.04 LTSlinux-gcp-fipsno fix
Ubuntu Pro Realtime 22.04 LTSlinux-intel-iot-realtime5.15.0-1103.105
Ubuntu Pro Realtime 22.04 LTSlinux-realtime5.15.0-1110.119
Ubuntu Pro Realtime 22.04 LTSlinux-realtime-6.86.8.1-1055.56~22.04.1
Ubuntu Pro Realtime 24.04 LTSlinux-raspi-realtime6.8.0-2049.50
Ubuntu Pro Realtime 24.04 LTSlinux-realtime6.8.1-1055.56
Ubuntu Pro Realtime 24.04 LTSlinux-realtime-6.14no fix
Ubuntu Pro Realtime 24.04 LTSlinux-realtime-6.176.17.0-1017.19~24.04.1