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Fencer Vulns
high 7.8

CVE-2023-6817 json

Use-after-free in Linux kernel's netfilter: nf_tables component

published 2023-12-18 2 y ago modified 2026-10-14 25 d ago also EUVD-2023-59027

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 26%
public exploits
0
none known

Summary

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.

The function nft_pipapo_walk did not skip inactive elements during set walk which could lead double deactivations of PIPAPO (Pile Packet Policies) elements, leading to use-after-free.

We recommend upgrading past commit 317eb9685095678f2c9f5a8189de698c5354316a.

Patch / fix

  • Linux Kernel 6.7
  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP V3.1.5
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP V3.1.5
  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem V1.1.1
  • Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP V3.1.5
  • linux Debian 12 6.1.69-1
  • linux Debian 14, Debian 13 6.6.8-1

debian advisories DEBIAN-CVE-2023-6817

  • linux Ubuntu 22.04 LTS 5.15.0-92.102
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1052.57
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1049.57
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1049.54
  • linux-ibm Ubuntu 22.04 LTS 5.15.0-1045.48
  • linux-kvm Ubuntu 22.04 LTS 5.15.0-1049.54
  • linux-azure Ubuntu 22.04 LTS 5.15.0-1054.62
  • linux-gkeop Ubuntu 22.04 LTS 5.15.0-1035.41

ubuntu advisories UBUNTU-CVE-2023-6817

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • perf rhev hypervisor 4.4, RHEL 8.6 EUS 4.18.0-372.91.1.el8_6
  • kernel RHEL 9 5.14.0-362.24.1.el9_3
  • rv RHEL 9 5.14.0-362.24.1.el9_3
  • perf RHEL 9 5.14.0-362.24.1.el9_3
  • rtla RHEL 9 5.14.0-362.24.1.el9_3
  • bpftool RHEL 9 7.2.0-362.24.1.el9_3
  • libperf RHEL 9 5.14.0-362.24.1.el9_3
  • kernel-rt RHEL 9 5.14.0-362.24.1.el9_3

red hat advisories RHSA-2024:3414RHSA-2024:3421RHSA-2024:1404RHSA-2024:1382RHSA-2024:1367RHSA-2024:0724

  • kernel-rt SLE Micro 5.4, SLE Micro 5.3, openSUSE Leap Micro 5.4 +1 more 5.14.21-150400.15.71.1
  • kernel-source-rt SLE Micro 5.4, SLE Micro 5.3 5.14.21-150400.15.71.1
  • kernel-rt SLE Micro 5.5, Real Time Module 15 SP5, openSUSE Leap 15.5 5.14.21-150500.13.38.1
  • kernel-syms-rt Real Time Module 15 SP5, openSUSE Leap 15.5 5.14.21-150500.13.38.1
  • kernel-rt_debug Real Time Module 15 SP5, openSUSE Leap 15.5 5.14.21-150500.13.38.1
  • kernel-source-rt SLE Micro 5.5, Real Time Module 15 SP5, openSUSE Leap 15.5 5.14.21-150500.13.38.1
  • kernel-syms SLE High Performance Computing 15 SP4-ESPOS, Manager Server 4.3, Manager Proxy 4.3 +3 more 5.14.21-150400.24.111.1
  • kernel-source SLE High Performance Computing 15 SP4-ESPOS, Manager Server 4.3, Manager Proxy 4.3 +3 more 5.14.21-150400.24.111.1

suse advisories SUSE-SU-2024:0977-1SUSE-SU-2024:0910-1SUSE-SU-2024:0900-2SUSE-SU-2024:0900-1SUSE-SU-2024:0858-1SUSE-SU-2024:0857-1

  • kernel AlmaLinux 8 4.18.0-513.18.1.el8_9
  • perf AlmaLinux 8 4.18.0-513.18.1.el8_9
  • bpftool AlmaLinux 8 4.18.0-513.18.1.el8_9
  • kernel-core AlmaLinux 8 4.18.0-513.18.1.el8_9
  • kernel-tools AlmaLinux 8 4.18.0-513.18.1.el8_9
  • python3-perf AlmaLinux 8 4.18.0-513.18.1.el8_9
  • kernel-modules AlmaLinux 8 4.18.0-513.18.1.el8_9
  • kernel-zfcpdump AlmaLinux 8 4.18.0-513.18.1.el8_9

almalinux advisories ALSA-2024:0897

  • kernel Rocky Linux 9 5.14.0-362.24.1.el9_3.cloud.0.6

rocky linux advisories RXSA-2024:1248

  • kernel Azure Linux 3.0 6.6.35.1-5

azure linux advisories AZL-62609

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-6817 updated cvss 7.8

kernel: inactive elements in nft_pipapo_walk

  • Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 more
    affected: workaround, no fix available
  • Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-513.18.1.el8_9, kernel-debuginfo-common-aarch64 4.18.0-513.18.1.el8_9, kernel-debuginfo-common-ppc64le 4.18.0-513.18.1.el8_9
    fixed: vendor fix RHSA-2024:0897
  • Red Hat CodeReady Linux Builder (v. 9) libperf 5.14.0-362.24.1.el9_3, kernel-debuginfo-common-s390x 5.14.0-362.24.1.el9_3, kernel-debuginfo-common-x86_64 5.14.0-362.24.1.el9_3, kernel-debuginfo-common-aarch64 5.14.0-362.24.1.el9_3, kernel-debuginfo-common-ppc64le 5.14.0-362.24.1.el9_3
    fixed: vendor fix RHSA-2024:1248
  • Red Hat CodeReady Linux Builder EUS (v.8.6) kernel-debuginfo-common-x86_64 4.18.0-372.91.1.el8_6, kernel-debuginfo-common-aarch64 4.18.0-372.91.1.el8_6, kernel-debuginfo-common-ppc64le 4.18.0-372.91.1.el8_6
    fixed: vendor fix RHSA-2024:0724
  • Red Hat CodeReady Linux Builder EUS (v.8.8) kernel-debuginfo-common-x86_64 4.18.0-477.51.1.el8_8, kernel-debuginfo-common-aarch64 4.18.0-477.51.1.el8_8, kernel-debuginfo-common-ppc64le 4.18.0-477.51.1.el8_8
    fixed: vendor fix RHSA-2024:1404
  • Red Hat CodeReady Linux Builder EUS (v.9.0) kernel-debuginfo-common-s390x 5.14.0-70.101.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.101.1.el9_0, kernel-debuginfo-common-aarch64 5.14.0-70.101.1.el9_0, kernel-debuginfo-common-ppc64le 5.14.0-70.101.1.el9_0
    fixed: vendor fix RHSA-2024:3421
  • Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-debuginfo-common-s390x 5.14.0-284.55.1.el9_2, kernel-debuginfo-common-x86_64 5.14.0-284.55.1.el9_2, kernel-debuginfo-common-aarch64 5.14.0-284.55.1.el9_2, kernel-debuginfo-common-ppc64le 5.14.0-284.55.1.el9_2
    fixed: vendor fix RHSA-2024:1018
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-362.24.1.el9_3, perf 5.14.0-362.24.1.el9_3, rtla 5.14.0-362.24.1.el9_3, kernel-devel-matched 5.14.0-362.24.1.el9_3, kernel-64k-devel-matched 5.14.0-362.24.1.el9_3, kernel-debug-devel-matched 5.14.0-362.24.1.el9_3, +6 more
    fixed: vendor fix RHSA-2024:1248
show 28 more
  • Red Hat Enterprise Linux AppStream EUS (v.9.0) perf 5.14.0-70.101.1.el9_0, kernel-devel-matched 5.14.0-70.101.1.el9_0, kernel-debug-devel-matched 5.14.0-70.101.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.101.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.101.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.101.1.el9_0, +2 more
    fixed: vendor fix RHSA-2024:3421
  • Red Hat Enterprise Linux AppStream EUS (v.9.2) perf 5.14.0-284.55.1.el9_2, rtla 5.14.0-284.55.1.el9_2, kernel-devel-matched 5.14.0-284.55.1.el9_2, kernel-64k-devel-matched 5.14.0-284.55.1.el9_2, kernel-debug-devel-matched 5.14.0-284.55.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.55.1.el9_2, +5 more
    fixed: vendor fix RHSA-2024:1018
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-513.18.1.el8_9, kernel 4.18.0-513.18.1.el8_9, bpftool 4.18.0-513.18.1.el8_9, kernel-core 4.18.0-513.18.1.el8_9, kernel-tools 4.18.0-513.18.1.el8_9, python3-perf 4.18.0-513.18.1.el8_9, +15 more
    fixed: vendor fix RHSA-2024:0897
  • Red Hat Enterprise Linux BaseOS (v. 9) bpftool 7.2.0-362.24.1.el9_3, kernel 5.14.0-362.24.1.el9_3, kernel-64k 5.14.0-362.24.1.el9_3, kernel-core 5.14.0-362.24.1.el9_3, kernel-tools 5.14.0-362.24.1.el9_3, python3-perf 5.14.0-362.24.1.el9_3, +28 more
    fixed: vendor fix RHSA-2024:1248
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) perf 4.18.0-193.128.1.el8_2, kernel 4.18.0-193.128.1.el8_2, bpftool 4.18.0-193.128.1.el8_2, kernel-core 4.18.0-193.128.1.el8_2, kernel-tools 4.18.0-193.128.1.el8_2, python3-perf 4.18.0-193.128.1.el8_2, +8 more
    fixed: vendor fix RHSA-2024:1268
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.125.1.el8_4, kernel 4.18.0-305.125.1.el8_4, bpftool 4.18.0-305.125.1.el8_4, kernel-core 4.18.0-305.125.1.el8_4, kernel-tools 4.18.0-305.125.1.el8_4, python3-perf 4.18.0-305.125.1.el8_4, +8 more
    fixed: vendor fix RHSA-2024:1367
  • Red Hat Enterprise Linux BaseOS E4S (v. 8.2) perf 4.18.0-193.128.1.el8_2, kernel 4.18.0-193.128.1.el8_2, bpftool 4.18.0-193.128.1.el8_2, kernel-core 4.18.0-193.128.1.el8_2, kernel-tools 4.18.0-193.128.1.el8_2, python3-perf 4.18.0-193.128.1.el8_2, +9 more
    fixed: vendor fix RHSA-2024:1268
  • Red Hat Enterprise Linux BaseOS E4S (v.8.4) perf 4.18.0-305.125.1.el8_4, kernel 4.18.0-305.125.1.el8_4, bpftool 4.18.0-305.125.1.el8_4, kernel-core 4.18.0-305.125.1.el8_4, kernel-tools 4.18.0-305.125.1.el8_4, python3-perf 4.18.0-305.125.1.el8_4, +9 more
    fixed: vendor fix RHSA-2024:1367
  • Red Hat Enterprise Linux BaseOS EUS (v.8.6) perf 4.18.0-372.91.1.el8_6, kernel 4.18.0-372.91.1.el8_6, bpftool 4.18.0-372.91.1.el8_6, kernel-core 4.18.0-372.91.1.el8_6, kernel-tools 4.18.0-372.91.1.el8_6, python3-perf 4.18.0-372.91.1.el8_6, +15 more
    fixed: vendor fix RHSA-2024:0724
  • Red Hat Enterprise Linux BaseOS EUS (v.8.8) perf 4.18.0-477.51.1.el8_8, kernel 4.18.0-477.51.1.el8_8, bpftool 4.18.0-477.51.1.el8_8, kernel-core 4.18.0-477.51.1.el8_8, kernel-tools 4.18.0-477.51.1.el8_8, python3-perf 4.18.0-477.51.1.el8_8, +15 more
    fixed: vendor fix RHSA-2024:1404
  • Red Hat Enterprise Linux BaseOS EUS (v.9.0) kernel 5.14.0-70.101.1.el9_0, bpftool 5.14.0-70.101.1.el9_0, kernel-core 5.14.0-70.101.1.el9_0, kernel-tools 5.14.0-70.101.1.el9_0, python3-perf 5.14.0-70.101.1.el9_0, kernel-modules 5.14.0-70.101.1.el9_0, +14 more
    fixed: vendor fix RHSA-2024:3421
  • Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool 7.0.0-284.55.1.el9_2, kernel 5.14.0-284.55.1.el9_2, kernel-64k 5.14.0-284.55.1.el9_2, kernel-core 5.14.0-284.55.1.el9_2, kernel-tools 5.14.0-284.55.1.el9_2, python3-perf 5.14.0-284.55.1.el9_2, +28 more
    fixed: vendor fix RHSA-2024:1018
  • Red Hat Enterprise Linux BaseOS TUS (v. 8.2) perf 4.18.0-193.128.1.el8_2, kernel 4.18.0-193.128.1.el8_2, bpftool 4.18.0-193.128.1.el8_2, kernel-core 4.18.0-193.128.1.el8_2, kernel-tools 4.18.0-193.128.1.el8_2, python3-perf 4.18.0-193.128.1.el8_2, +8 more
    fixed: vendor fix RHSA-2024:1268
  • Red Hat Enterprise Linux BaseOS TUS (v.8.4) perf 4.18.0-305.125.1.el8_4, kernel 4.18.0-305.125.1.el8_4, bpftool 4.18.0-305.125.1.el8_4, kernel-core 4.18.0-305.125.1.el8_4, kernel-tools 4.18.0-305.125.1.el8_4, python3-perf 4.18.0-305.125.1.el8_4, +8 more
    fixed: vendor fix RHSA-2024:1367
  • Red Hat Enterprise Linux for Real Time (v. 8) kernel-rt 4.18.0-513.18.1.rt7.320.el8_9, kernel-rt-core 4.18.0-513.18.1.rt7.320.el8_9, kernel-rt-modules 4.18.0-513.18.1.rt7.320.el8_9, kernel-rt-debug-core 4.18.0-513.18.1.rt7.320.el8_9, kernel-rt-debug-modules 4.18.0-513.18.1.rt7.320.el8_9, kernel-rt-modules-extra 4.18.0-513.18.1.rt7.320.el8_9, +2 more
    fixed: vendor fix RHSA-2024:0881
  • Red Hat Enterprise Linux NFV TUS (v.8.4) kernel-rt 4.18.0-305.125.1.rt7.201.el8_4, kernel-rt-kvm 4.18.0-305.125.1.rt7.201.el8_4, kernel-rt-core 4.18.0-305.125.1.rt7.201.el8_4, kernel-rt-modules 4.18.0-305.125.1.rt7.201.el8_4, kernel-rt-debug-kvm 4.18.0-305.125.1.rt7.201.el8_4, kernel-rt-debug-core 4.18.0-305.125.1.rt7.201.el8_4, +4 more
    fixed: vendor fix RHSA-2024:1382
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-362.24.1.el9_3, kernel-rt-core 5.14.0-362.24.1.el9_3, kernel-rt-modules 5.14.0-362.24.1.el9_3, kernel-rt-debug-core 5.14.0-362.24.1.el9_3, kernel-rt-modules-core 5.14.0-362.24.1.el9_3, kernel-rt-debug-modules 5.14.0-362.24.1.el9_3, +4 more
    fixed: vendor fix RHSA-2024:1248
  • Red Hat Enterprise Linux Real Time EUS (v.9.0) kernel-rt 5.14.0-70.101.1.rt21.173.el9_0, kernel-rt-core 5.14.0-70.101.1.rt21.173.el9_0, kernel-rt-modules 5.14.0-70.101.1.rt21.173.el9_0, kernel-rt-debug-core 5.14.0-70.101.1.rt21.173.el9_0, kernel-rt-debug-modules 5.14.0-70.101.1.rt21.173.el9_0, kernel-rt-modules-extra 5.14.0-70.101.1.rt21.173.el9_0, +2 more
    fixed: vendor fix RHSA-2024:3414
  • Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-core 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-modules 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-debug-core 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-modules-core 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-debug-modules 5.14.0-284.55.1.rt14.340.el9_2, +4 more
    fixed: vendor fix RHSA-2024:1019
  • Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt 4.18.0-513.18.1.rt7.320.el8_9, kernel-rt-kvm 4.18.0-513.18.1.rt7.320.el8_9, kernel-rt-core 4.18.0-513.18.1.rt7.320.el8_9, kernel-rt-modules 4.18.0-513.18.1.rt7.320.el8_9, kernel-rt-debug-kvm 4.18.0-513.18.1.rt7.320.el8_9, kernel-rt-debug-core 4.18.0-513.18.1.rt7.320.el8_9, +4 more
    fixed: vendor fix RHSA-2024:0881
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-362.24.1.el9_3, kernel-rt-kvm 5.14.0-362.24.1.el9_3, kernel-rt-core 5.14.0-362.24.1.el9_3, kernel-rt-modules 5.14.0-362.24.1.el9_3, kernel-rt-debug-kvm 5.14.0-362.24.1.el9_3, kernel-rt-debug-core 5.14.0-362.24.1.el9_3, +6 more
    fixed: vendor fix RHSA-2024:1248
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0) kernel-rt 5.14.0-70.101.1.rt21.173.el9_0, kernel-rt-kvm 5.14.0-70.101.1.rt21.173.el9_0, kernel-rt-core 5.14.0-70.101.1.rt21.173.el9_0, kernel-rt-modules 5.14.0-70.101.1.rt21.173.el9_0, kernel-rt-debug-kvm 5.14.0-70.101.1.rt21.173.el9_0, kernel-rt-debug-core 5.14.0-70.101.1.rt21.173.el9_0, +4 more
    fixed: vendor fix RHSA-2024:3414
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-kvm 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-core 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-modules 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-debug-kvm 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-debug-core 5.14.0-284.55.1.rt14.340.el9_2, +6 more
    fixed: vendor fix RHSA-2024:1019
  • Red Hat Enterprise Linux Real Time for NFV TUS (v. 8.2) kernel-rt 4.18.0-193.128.1.rt13.179.el8_2, kernel-rt-kvm 4.18.0-193.128.1.rt13.179.el8_2, kernel-rt-core 4.18.0-193.128.1.rt13.179.el8_2, kernel-rt-modules 4.18.0-193.128.1.rt13.179.el8_2, kernel-rt-debug-kvm 4.18.0-193.128.1.rt13.179.el8_2, kernel-rt-debug-core 4.18.0-193.128.1.rt13.179.el8_2, +4 more Red Hat Enterprise Linux Real Time TUS (v. 8.2) kernel-rt 4.18.0-193.128.1.rt13.179.el8_2, kernel-rt-core 4.18.0-193.128.1.rt13.179.el8_2, kernel-rt-modules 4.18.0-193.128.1.rt13.179.el8_2, kernel-rt-debug-core 4.18.0-193.128.1.rt13.179.el8_2, kernel-rt-debug-modules 4.18.0-193.128.1.rt13.179.el8_2, kernel-rt-modules-extra 4.18.0-193.128.1.rt13.179.el8_2, +2 more
    fixed: vendor fix RHSA-2024:1269
  • Red Hat Enterprise Linux RT TUS (v.8.4) kernel-rt 4.18.0-305.125.1.rt7.201.el8_4, kernel-rt-core 4.18.0-305.125.1.rt7.201.el8_4, kernel-rt-modules 4.18.0-305.125.1.rt7.201.el8_4, kernel-rt-debug-core 4.18.0-305.125.1.rt7.201.el8_4, kernel-rt-debug-modules 4.18.0-305.125.1.rt7.201.el8_4, kernel-rt-modules-extra 4.18.0-305.125.1.rt7.201.el8_4, +2 more
    fixed: vendor fix RHSA-2024:1382
  • Red Hat Virtualization 4 Hypervisor for RHEL 8 perf 4.18.0-372.91.1.el8_6, kernel-debuginfo-common-x86_64 4.18.0-372.91.1.el8_6
    fixed: vendor fix RHSA-2024:0724
  • Red Hat RHOL 5.8 for RHEL 9 openshift-logging/fluentd-rhel9 v5.8.6-5, openshift-logging/vector-rhel9 v0.28.1-56, openshift-logging/eventrouter-rhel9 v0.4.0-247, openshift-logging/logging-loki-rhel9 v2.9.6-14, openshift-logging/loki-rhel9-operator v5.8.6-10, openshift-logging/loki-operator-bundle v5.8.6-24, +11 more
    fixed: vendor fix RHSA-2024:2094
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux AppStream EUS (v.9.2) kernel-doc 5.14.0-284.55.1.el9_2
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-24-102-01 updated cvss 7.8

Siemens SIMATIC S7-1500 TM MFP

  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
    affected: mitigation, no fix available

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-23-348-10 updated cvss 7.8

Siemens SIMATIC S7-1500

  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= 3.1.0, < 3.1.5 Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= 3.1.0, < 3.1.5
    affected: fixed in V3.1.5, mitigation support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Linux Kernel
  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
  • Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.