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Fencer Vulns
high 7.8

CVE-2024-1086 kev+ ransomware in the critical feed json

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

published 2024-01-31 2 y ago modified 2026-08-07 3 mo ago also EUVD-2024-16861

cvss
7.8
version 3.1, CNA
cisa kev
Exploited
added 2024-05-30, used in ransomware
epss
28.1%
EPSS 28.1% chance of exploitation in 30 days, percentile 98%
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 nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT.

We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660.

Patch / fix

cisa required action Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

  • Linux Kernel 6.8
  • linux linux_kernel 6.8
  • linux Debian 12 6.1.76-1
  • linux Debian 14, Debian 13 6.6.15-1

debian advisories DEBIAN-CVE-2024-1086

  • linux Ubuntu 20.04 LTS 5.4.0-174.193
  • linux Ubuntu 22.04 LTS 5.15.0-101.111
  • linux-aws Ubuntu 20.04 LTS 5.4.0-1121.131
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1056.61
  • linux-gcp Ubuntu 20.04 LTS 5.4.0-1125.134
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1054.62
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1053.58
  • linux-ibm Ubuntu 20.04 LTS 5.4.0-1068.73

ubuntu advisories UBUNTU-CVE-2024-1086

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

  • kernel RHEL 9 5.14.0-427.13.1.el9_4
  • rv RHEL 9 5.14.0-427.13.1.el9_4
  • perf RHEL 9 5.14.0-427.13.1.el9_4
  • rtla RHEL 9 5.14.0-427.13.1.el9_4
  • bpftool RHEL 9 7.3.0-427.13.1.el9_4
  • libperf RHEL 9 5.14.0-427.13.1.el9_4
  • kernel-rt RHEL 9 5.14.0-427.13.1.el9_4
  • kernel-64k RHEL 9 5.14.0-427.13.1.el9_4

red hat advisories RHSA-2024:2394RHSA-2024:3414RHSA-2024:3421RHSA-2024:1404RHSA-2024:1018RHSA-2024:1019

  • dtb-aarch64 openSUSE Leap 15.5 5.14.21-150500.55.49.1
  • kernel-64kb SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.49.1
  • kernel-syms SLE Module for Development Tools 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.49.1
  • kernel-obs-qa openSUSE Leap 15.5 5.14.21-150500.55.49.1
  • kernel-source SLE Module for Development Tools 15 SP5, SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.49.1
  • kernel-default SLE Workstation Extension 15 SP5, SLE Module for Legacy 15 SP5, SLE Module for Basesystem 15 SP5 +4 more 5.14.21-150500.55.49.1
  • kernel-kvmsmall openSUSE Leap 15.5 5.14.21-150500.55.49.1
  • kernel-zfcpdump SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.49.1

suse advisories SUSE-SU-2024:1596-1SUSE-SU-2024:1582-1SUSE-SU-2024:1581-1SUSE-SU-2024:1580-1SUSE-SU-2024:1562-1SUSE-SU-2024:1558-1

  • kernel AlmaLinux 9 5.14.0-427.13.1.el9_4
  • rv AlmaLinux 9 5.14.0-427.13.1.el9_4
  • perf AlmaLinux 9 5.14.0-427.13.1.el9_4
  • rtla AlmaLinux 9 5.14.0-427.13.1.el9_4
  • bpftool AlmaLinux 9 7.3.0-427.13.1.el9_4
  • libperf AlmaLinux 9 5.14.0-427.13.1.el9_4
  • kernel-rt AlmaLinux 9 5.14.0-427.13.1.el9_4
  • kernel-64k AlmaLinux 9 5.14.0-427.13.1.el9_4

almalinux advisories ALSA-2024:2394ALSA-2024:1607

  • kernel Rocky Linux 8 4.18.0-513.24.1.el8_9.cloud.0.1
  • kernel-rt Rocky Linux 8 4.18.0-513.24.1.rt7.326.el8_9
  • kernel Rocky Linux 8 4.18.0-513.24.1.el8_9

rocky linux advisories RXSA-2024:1607RLSA-2024:1614RLSA-2024:1607

  • kernel CBL-Mariner 2.0 5.15.153.1-1
  • kernel Azure Linux 3.0 6.6.22.1-2

azure linux advisories AZL-34155AZL-34874

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-2024-1086 updated cvss 7.8

kernel: nf_tables: use-after-free vulnerability in the nft_verdict_init() function

  • Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-513.24.1.el8_9, kernel-debuginfo-common-aarch64 4.18.0-513.24.1.el8_9, kernel-debuginfo-common-ppc64le 4.18.0-513.24.1.el8_9
    fixed: vendor fix RHSA-2024:1607
  • Red Hat CodeReady Linux Builder EUS (v.8.6) kernel-debuginfo-common-x86_64 4.18.0-372.93.1.el8_6, kernel-debuginfo-common-aarch64 4.18.0-372.93.1.el8_6, kernel-debuginfo-common-ppc64le 4.18.0-372.93.1.el8_6
    fixed: vendor fix RHSA-2024:0930
  • 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 5.14.0-427.13.1.el9_4, perf 5.14.0-427.13.1.el9_4, rtla 5.14.0-427.13.1.el9_4, kernel-devel-matched 5.14.0-427.13.1.el9_4, kernel-64k-devel-matched 5.14.0-427.13.1.el9_4, kernel-debug-devel-matched 5.14.0-427.13.1.el9_4, +6 more
    fixed: vendor fix RHSA-2024:2394
  • 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
show 29 more
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-513.24.1.el8_9, kernel 4.18.0-513.24.1.el8_9, bpftool 4.18.0-513.24.1.el8_9, kernel-core 4.18.0-513.24.1.el8_9, kernel-tools 4.18.0-513.24.1.el8_9, python3-perf 4.18.0-513.24.1.el8_9, +15 more
    fixed: vendor fix RHSA-2024:1607
  • Red Hat Enterprise Linux BaseOS (v. 9) bpftool 7.3.0-427.13.1.el9_4, kernel 5.14.0-427.13.1.el9_4, kernel-64k 5.14.0-427.13.1.el9_4, kernel-core 5.14.0-427.13.1.el9_4, kernel-tools 5.14.0-427.13.1.el9_4, python3-perf 5.14.0-427.13.1.el9_4, +28 more
    fixed: vendor fix RHSA-2024:2394
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) perf 4.18.0-193.135.1.el8_2, kernel 4.18.0-193.135.1.el8_2, bpftool 4.18.0-193.135.1.el8_2, kernel-core 4.18.0-193.135.1.el8_2, kernel-tools 4.18.0-193.135.1.el8_2, python3-perf 4.18.0-193.135.1.el8_2, +8 more
    fixed: vendor fix RHSA-2024:3528
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.131.1.el8_4, kernel 4.18.0-305.131.1.el8_4, bpftool 4.18.0-305.131.1.el8_4, kernel-core 4.18.0-305.131.1.el8_4, kernel-tools 4.18.0-305.131.1.el8_4, python3-perf 4.18.0-305.131.1.el8_4, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.4) perf 4.18.0-305.131.1.el8_4, kernel 4.18.0-305.131.1.el8_4, bpftool 4.18.0-305.131.1.el8_4, kernel-core 4.18.0-305.131.1.el8_4, kernel-tools 4.18.0-305.131.1.el8_4, python3-perf 4.18.0-305.131.1.el8_4, +11 more
    fixed: vendor fix RHSA-2024:3529
  • Red Hat Enterprise Linux BaseOS E4S (v.8.6) kpatch-patch-4_18_0-372_80_1 1-4.el8_6, kpatch-patch-4_18_0-372_87_1 1-3.el8_6, kpatch-patch-4_18_0-372_91_1 1-2.el8_6
    fixed: vendor fix RHSA-2024:4075
  • Red Hat Enterprise Linux BaseOS EUS (v.8.6) perf 4.18.0-372.93.1.el8_6, kernel 4.18.0-372.93.1.el8_6, bpftool 4.18.0-372.93.1.el8_6, kernel-core 4.18.0-372.93.1.el8_6, kernel-tools 4.18.0-372.93.1.el8_6, python3-perf 4.18.0-372.93.1.el8_6, +15 more
    fixed: vendor fix RHSA-2024:0930
  • 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, +17 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, +16 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, +31 more
    fixed: vendor fix RHSA-2024:1018
  • Red Hat Enterprise Linux BaseOS TUS (v.8.4) perf 4.18.0-305.131.1.el8_4, kernel 4.18.0-305.131.1.el8_4, bpftool 4.18.0-305.131.1.el8_4, kernel-core 4.18.0-305.131.1.el8_4, kernel-tools 4.18.0-305.131.1.el8_4, python3-perf 4.18.0-305.131.1.el8_4, +8 more
    fixed: vendor fix RHSA-2024:3529
  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-1160.114.2.el7, kernel 3.10.0-1160.114.2.el7, bpftool 3.10.0-1160.114.2.el7, python-perf 3.10.0-1160.114.2.el7, kernel-tools 3.10.0-1160.114.2.el7, kernel-tools-libs 3.10.0-1160.114.2.el7, +2 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1160.114.2.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1160.114.2.el7
    fixed: vendor fix RHSA-2024:1249
  • Red Hat Enterprise Linux CRB (v. 9) libperf 5.14.0-427.13.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.13.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.13.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.13.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.13.1.el9_4
    fixed: vendor fix RHSA-2024:2394
  • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt 3.10.0-1160.114.2.rt56.1266.el7, kernel-rt-trace 3.10.0-1160.114.2.rt56.1266.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.114.2.rt56.1266.el7
    fixed: vendor fix RHSA-2024:1332
  • Red Hat Enterprise Linux for Real Time (v. 8) kernel-rt 4.18.0-513.24.1.rt7.326.el8_9, kernel-rt-core 4.18.0-513.24.1.rt7.326.el8_9, kernel-rt-modules 4.18.0-513.24.1.rt7.326.el8_9, kernel-rt-debug-core 4.18.0-513.24.1.rt7.326.el8_9, kernel-rt-debug-modules 4.18.0-513.24.1.rt7.326.el8_9, kernel-rt-modules-extra 4.18.0-513.24.1.rt7.326.el8_9, +2 more
    fixed: vendor fix RHSA-2024:1614
  • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-1160.114.2.rt56.1266.el7, kernel-rt-kvm 3.10.0-1160.114.2.rt56.1266.el7, kernel-rt-trace 3.10.0-1160.114.2.rt56.1266.el7, kernel-rt-debug-kvm 3.10.0-1160.114.2.rt56.1266.el7, kernel-rt-trace-kvm 3.10.0-1160.114.2.rt56.1266.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.114.2.rt56.1266.el7
    fixed: vendor fix RHSA-2024:1332
  • Red Hat Enterprise Linux NFV (v. 9) kernel-rt 5.14.0-427.13.1.el9_4, kernel-rt-kvm 5.14.0-427.13.1.el9_4, kernel-rt-core 5.14.0-427.13.1.el9_4, kernel-rt-modules 5.14.0-427.13.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.13.1.el9_4, kernel-rt-debug-core 5.14.0-427.13.1.el9_4, +6 more
    fixed: vendor fix RHSA-2024:2394
  • Red Hat Enterprise Linux NFV TUS (v.8.4) kernel-rt 4.18.0-305.131.1.rt7.207.el8_4, kernel-rt-kvm 4.18.0-305.131.1.rt7.207.el8_4, kernel-rt-core 4.18.0-305.131.1.rt7.207.el8_4, kernel-rt-modules 4.18.0-305.131.1.rt7.207.el8_4, kernel-rt-debug-kvm 4.18.0-305.131.1.rt7.207.el8_4, kernel-rt-debug-core 4.18.0-305.131.1.rt7.207.el8_4, +4 more
    fixed: vendor fix RHSA-2024:3530
  • 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 4.18.0-513.24.1.rt7.326.el8_9, kernel-rt-kvm 4.18.0-513.24.1.rt7.326.el8_9, kernel-rt-core 4.18.0-513.24.1.rt7.326.el8_9, kernel-rt-modules 4.18.0-513.24.1.rt7.326.el8_9, kernel-rt-debug-kvm 4.18.0-513.24.1.rt7.326.el8_9, kernel-rt-debug-core 4.18.0-513.24.1.rt7.326.el8_9, +4 more
    fixed: vendor fix RHSA-2024:1614
  • 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 RT (v. 9) kernel-rt 5.14.0-427.13.1.el9_4, kernel-rt-core 5.14.0-427.13.1.el9_4, kernel-rt-modules 5.14.0-427.13.1.el9_4, kernel-rt-debug-core 5.14.0-427.13.1.el9_4, kernel-rt-modules-core 5.14.0-427.13.1.el9_4, kernel-rt-debug-modules 5.14.0-427.13.1.el9_4, +4 more
    fixed: vendor fix RHSA-2024:2394
  • Red Hat Enterprise Linux RT TUS (v.8.4) kernel-rt 4.18.0-305.131.1.rt7.207.el8_4, kernel-rt-core 4.18.0-305.131.1.rt7.207.el8_4, kernel-rt-modules 4.18.0-305.131.1.rt7.207.el8_4, kernel-rt-debug-core 4.18.0-305.131.1.rt7.207.el8_4, kernel-rt-debug-modules 4.18.0-305.131.1.rt7.207.el8_4, kernel-rt-modules-extra 4.18.0-305.131.1.rt7.207.el8_4, +2 more
    fixed: vendor fix RHSA-2024:3530
  • Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-1160.114.2.el7, kernel 3.10.0-1160.114.2.el7, bpftool 3.10.0-1160.114.2.el7, python-perf 3.10.0-1160.114.2.el7, kernel-kdump 3.10.0-1160.114.2.el7, kernel-tools 3.10.0-1160.114.2.el7, +9 more
    fixed: vendor fix RHSA-2024:1249
  • Red Hat Enterprise Linux Server AUS (v. 7.6) perf 3.10.0-957.113.1.el7, kernel 3.10.0-957.113.1.el7, bpftool 3.10.0-957.113.1.el7, python-perf 3.10.0-957.113.1.el7, kernel-tools 3.10.0-957.113.1.el7, kernel-tools-libs 3.10.0-957.113.1.el7, +2 more
    fixed: vendor fix RHSA-2024:3318
  • Red Hat Enterprise Linux Server AUS (v. 7.7) perf 3.10.0-1062.88.1.el7, kernel 3.10.0-1062.88.1.el7, bpftool 3.10.0-1062.88.1.el7, python-perf 3.10.0-1062.88.1.el7, kernel-tools 3.10.0-1062.88.1.el7, kernel-tools-libs 3.10.0-1062.88.1.el7, +2 more
    fixed: vendor fix RHSA-2024:3319
  • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-1160.114.2.el7, kernel-debuginfo-common-x86_64 3.10.0-1160.114.2.el7, kernel-debuginfo-common-ppc64le 3.10.0-1160.114.2.el7
    fixed: vendor fix RHSA-2024:1249
  • Red Hat Enterprise Linux Server Optional AUS (v. 7.6) kernel-debuginfo-common-x86_64 3.10.0-957.113.1.el7
    fixed: vendor fix RHSA-2024:3318

5 more fixed, 2 more not affected in the full advisory

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-25-226-15 updated

Siemens SINEC OS

  • Siemens RUGGEDCOM RST2428P (6GK6242-6PA00) Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family
    not affected

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

Timeline

  1. Published
  2. Added to CISA KEV
  3. CISA SSVC: exploitation active
  4. CISA patch deadline

Known exploited

Added
2 y ago
Patch by
2024-06-20 (2 y ago)
Ransomware
Known to be used in ransomware campaigns
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Vendor, product
Linux, Kernel
CISA name
Linux Kernel Use-After-Free Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

28.06% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/Notselwyn/CVE-2024-1086 referenced PoC, tagged "exploit" by a source, unverified
  • pwning.tech https://pwning.tech/nftables/ referenced PoC, tagged "exploit" by a source, unverified
  • openwall.com http://www.openwall.com/lists/oss-security/2024/04/14/1 referenced PoC, tagged "exploit" by a source, unverified
  • openwall.com http://www.openwall.com/lists/oss-security/2024/04/17/5 referenced PoC, tagged "exploit" by a source, unverified

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
  • linux linux_kernel

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.