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Fencer Vulns
critical 9.8

CVE-2026-74480 in the critical feed json

net: bridge: stop fast-leave after deleting a port group

published 2026-08-15 2 mo ago modified 2026-10-16 23 d ago also EUVD-2026-59673

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits
0
none known

Summary

In the Linux kernel, the following vulnerability has been resolved:

net: bridge: stop fast-leave after deleting a port group

br_multicast_leave_group() iterates mp->ports with pp = &p->next in its fast-leave path. After br_multicast_del_pg() removes p, continuing the loop advances pp through the deleted entry.

If multicast-to-unicast was enabled, the bridge can hold multiple port groups for the same port and group with different source MAC addresses. Once multicast-to-unicast is disabled, br_port_group_equal() matches those entries by port only. A fast leave can then delete one entry and continue from its stale next pointer, leaving mp->ports pointing at a deleted port group.

Fast leave only needs to remove one matching port group. Break after br_multicast_del_pg() so the loop stops before dereferencing the removed entry.

Patch / fix

  • Linux Linux 5.10.265, 5.15.216, 6.1.183, 6.6.151, 6.12.103, 6.18.44, 7.1.8, 7.2
  • linux Debian 12 6.1.187-1
  • linux Debian 13 6.12.105-1
  • linux Debian 14 7.1.8-1
  • linux-6.12 Debian 12 6.12.107-1~deb12u1

debian advisories DEBIAN-CVE-2026-74480

  • linux Ubuntu 22.04 LTS 5.15.0-198.208
  • linux Ubuntu 26.04 LTS 7.0.0-42.42
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1117.124
  • linux-aws Ubuntu 26.04 LTS 7.0.0-1016.17
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1118.128
  • linux-gcp Ubuntu 26.04 LTS 7.0.0-1016.18
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1113.119
  • linux-ibm Ubuntu 22.04 LTS 5.15.0-1111.115

ubuntu advisories UBUNTU-CVE-2026-74480

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 enterprise linux nvidia 10 6.12.0-259.26.el10nv
  • rv enterprise linux nvidia 10 6.12.0-259.26.el10nv
  • perf enterprise linux nvidia 10 6.12.0-259.26.el10nv
  • rtla enterprise linux nvidia 10 6.12.0-259.26.el10nv
  • libperf enterprise linux nvidia 10 6.12.0-259.26.el10nv
  • kernel-64k enterprise linux nvidia 10 6.12.0-259.26.el10nv
  • kernel-core enterprise linux nvidia 10 6.12.0-259.26.el10nv
  • kernel-tools enterprise linux nvidia 10 6.12.0-259.26.el10nv

red hat advisories RHSA-2026:73187RHSA-2026:67277RHSA-2026:66355RHSA-2026:66180RHSA-2026:66000RHSA-2026:64770

  • kernel-64kb SLE Module for Basesystem 15 SP7 6.4.0-150700.53.84.1
  • kernel-syms SLE Module for Development Tools 15 SP7 6.4.0-150700.53.84.1
  • kernel-azure SLE Module for Public Cloud 15 SP7 6.4.0-150700.53.84.1
  • kernel-source SLE Module for Development Tools 15 SP7, SLE Module for Basesystem 15 SP7 6.4.0-150700.53.84.1
  • kernel-default SLE Workstation Extension 15 SP7, SLE Module for Legacy 15 SP7, SLE Module for Basesystem 15 SP7 +2 more 6.4.0-150700.53.84.1
  • kernel-zfcpdump SLE Module for Basesystem 15 SP7 6.4.0-150700.53.84.1
  • kernel-obs-build SLE Module for Development Tools 15 SP7 6.4.0-150700.53.84.1
  • kernel-default-base SLE Module for Basesystem 15 SP7 6.4.0-150700.53.84.1.150700.17.47.1

suse advisories SUSE-SU-2026:4706-1SUSE-SU-2026:4687-1SUSE-SU-2026:4668-1SUSE-SU-2026:4667-1SUSE-SU-2026:4666-1SUSE-SU-2026:4665-1

  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.39.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.39.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.39.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.39.1
  • kernel-azure openSUSE Leap 16.0 6.12.0-160000.39.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.39.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.39.1
  • kernel-default openSUSE Leap 16.0 6.12.0-160000.39.1

opensuse advisories openSUSE-SU-2026:22091-1

  • kernel AlmaLinux 10 6.12.0-211.54.1.el10_2
  • rv AlmaLinux 10 6.12.0-211.54.1.el10_2
  • perf AlmaLinux 10 6.12.0-211.54.1.el10_2
  • rtla AlmaLinux 10 6.12.0-211.54.1.el10_2
  • libperf AlmaLinux 10 6.12.0-211.54.1.el10_2
  • kernel-rt AlmaLinux 10 6.12.0-211.54.1.el10_2
  • kernel-64k AlmaLinux 10 6.12.0-211.54.1.el10_2
  • kernel-core AlmaLinux 10 6.12.0-211.54.1.el10_2

almalinux advisories ALSA-2026:66355ALSA-2026:66000ALSA-2026:66180ALSA-2026:64770

  • kernel Rocky Linux 10 6.12.0-211.54.1.el10_2
  • kernel Rocky Linux 9 5.14.0-687.46.1.el9_8
  • kernel-rt Rocky Linux 8 4.18.0-553.160.1.rt7.501.el8_10

rocky linux advisories RLSA-2026:66355RLSA-2026:66180RLSA-2026:64770

  • kernel Azure Linux 3.0 6.6.152.1-1

azure linux advisories AZL-96423

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-2026-74480 updated cvss 7.8

kernel: net: bridge: stop fast-leave after deleting a port group

  • 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 NVIDIA for RHEL 10 rv 6.12.0-231.19.el10nv, rv 6.12.0-259.26.el10nv, perf 6.12.0-231.19.el10nv, perf 6.12.0-259.26.el10nv, rtla 6.12.0-231.19.el10nv, rtla 6.12.0-259.26.el10nv, +62 more
    fixed: vendor fix RHSA-2026:67277
  • Red Hat CodeReady Linux Builder EUS (v.9.6) libperf 5.14.0-570.138.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.138.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.138.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.138.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.138.1.el9_6
    fixed: vendor fix RHSA-2026:62568
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-687.46.1.el9_8, perf 5.14.0-687.46.1.el9_8, rtla 5.14.0-687.46.1.el9_8, python3-perf 5.14.0-687.46.1.el9_8, kernel-devel-matched 5.14.0-687.46.1.el9_8, kernel-64k-devel-matched 5.14.0-687.46.1.el9_8, +7 more
    fixed: vendor fix RHSA-2026:66180
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-211.54.1.el10_2, perf 6.12.0-211.54.1.el10_2, rtla 6.12.0-211.54.1.el10_2, python3-perf 6.12.0-211.54.1.el10_2, kernel-devel-matched 6.12.0-211.54.1.el10_2, kernel-64k-devel-matched 6.12.0-211.54.1.el10_2, +7 more
    fixed: vendor fix RHSA-2026:66355
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.190.1.el9_2, rtla 5.14.0-284.190.1.el9_2, kernel-devel-matched 5.14.0-284.190.1.el9_2, kernel-64k-devel-matched 5.14.0-284.190.1.el9_2, kernel-debug-devel-matched 5.14.0-284.190.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.190.1.el9_2, +5 more
    fixed: vendor fix RHSA-2026:62508
  • Red Hat Enterprise Linux AppStream E4S (v.9.4) rv 5.14.0-427.148.1.el9_4, perf 5.14.0-427.148.1.el9_4, rtla 5.14.0-427.148.1.el9_4, kernel-devel-matched 5.14.0-427.148.1.el9_4, kernel-64k-devel-matched 5.14.0-427.148.1.el9_4, kernel-debug-devel-matched 5.14.0-427.148.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:62346
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.102.1.el10_0, perf 6.12.0-55.102.1.el10_0, rtla 6.12.0-55.102.1.el10_0, python3-perf 6.12.0-55.102.1.el10_0, kernel-devel-matched 6.12.0-55.102.1.el10_0, kernel-64k-devel-matched 6.12.0-55.102.1.el10_0, +7 more
    fixed: vendor fix RHSA-2026:62609
show 32 more
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.138.1.el9_6, perf 5.14.0-570.138.1.el9_6, rtla 5.14.0-570.138.1.el9_6, python3-perf 5.14.0-570.138.1.el9_6, kernel-devel-matched 5.14.0-570.138.1.el9_6, kernel-64k-devel-matched 5.14.0-570.138.1.el9_6, +7 more
    fixed: vendor fix RHSA-2026:62568
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.160.1.el8_10, kernel 4.18.0-553.160.1.el8_10, bpftool 4.18.0-553.160.1.el8_10, kernel-core 4.18.0-553.160.1.el8_10, kernel-tools 4.18.0-553.160.1.el8_10, python3-perf 4.18.0-553.160.1.el8_10, +20 more
    fixed: vendor fix RHSA-2026:66000
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-687.46.1.el9_8, kernel-64k 5.14.0-687.46.1.el9_8, kernel-core 5.14.0-687.46.1.el9_8, kernel-tools 5.14.0-687.46.1.el9_8, kernel-modules 5.14.0-687.46.1.el9_8, kernel-64k-core 5.14.0-687.46.1.el9_8, +29 more
    fixed: vendor fix RHSA-2026:66180
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-211.54.1.el10_2, kernel-64k 6.12.0-211.54.1.el10_2, kernel-core 6.12.0-211.54.1.el10_2, kernel-tools 6.12.0-211.54.1.el10_2, kernel-modules 6.12.0-211.54.1.el10_2, kernel-64k-core 6.12.0-211.54.1.el10_2, +30 more
    fixed: vendor fix RHSA-2026:66355
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.204.1.el8_4, kernel 4.18.0-305.204.1.el8_4, bpftool 4.18.0-305.204.1.el8_4, kernel-core 4.18.0-305.204.1.el8_4, kernel-tools 4.18.0-305.204.1.el8_4, python3-perf 4.18.0-305.204.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:62372
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.211.1.el8_6, kernel 4.18.0-372.211.1.el8_6, bpftool 4.18.0-372.211.1.el8_6, kernel-core 4.18.0-372.211.1.el8_6, kernel-tools 4.18.0-372.211.1.el8_6, python3-perf 4.18.0-372.211.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:61973
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.164.1.el8_8, kernel 4.18.0-477.164.1.el8_8, bpftool 4.18.0-477.164.1.el8_8, kernel-core 4.18.0-477.164.1.el8_8, kernel-tools 4.18.0-477.164.1.el8_8, python3-perf 4.18.0-477.164.1.el8_8, +14 more
    fixed: vendor fix RHSA-2026:62345
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.190.1.el9_2, kernel 5.14.0-284.190.1.el9_2, kernel-64k 5.14.0-284.190.1.el9_2, kernel-core 5.14.0-284.190.1.el9_2, kernel-tools 5.14.0-284.190.1.el9_2, python3-perf 5.14.0-284.190.1.el9_2, +33 more
    fixed: vendor fix RHSA-2026:62508
  • Red Hat Enterprise Linux BaseOS E4S (v.9.4) bpftool 7.3.0-427.148.1.el9_4, kernel 5.14.0-427.148.1.el9_4, kernel-64k 5.14.0-427.148.1.el9_4, kernel-core 5.14.0-427.148.1.el9_4, kernel-tools 5.14.0-427.148.1.el9_4, python3-perf 5.14.0-427.148.1.el9_4, +33 more
    fixed: vendor fix RHSA-2026:62346
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.102.1.el10_0, kernel-64k 6.12.0-55.102.1.el10_0, kernel-core 6.12.0-55.102.1.el10_0, kernel-tools 6.12.0-55.102.1.el10_0, kernel-modules 6.12.0-55.102.1.el10_0, kernel-64k-core 6.12.0-55.102.1.el10_0, +27 more
    fixed: vendor fix RHSA-2026:62609
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.138.1.el9_6, kernel-64k 5.14.0-570.138.1.el9_6, kernel-core 5.14.0-570.138.1.el9_6, kernel-tools 5.14.0-570.138.1.el9_6, kernel-modules 5.14.0-570.138.1.el9_6, kernel-64k-core 5.14.0-570.138.1.el9_6, +32 more
    fixed: vendor fix RHSA-2026:62568
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.204.1.el8_4, kernel 4.18.0-305.204.1.el8_4, bpftool 4.18.0-305.204.1.el8_4, kernel-core 4.18.0-305.204.1.el8_4, kernel-tools 4.18.0-305.204.1.el8_4, python3-perf 4.18.0-305.204.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:62372
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) perf 4.18.0-372.211.1.el8_6, kernel 4.18.0-372.211.1.el8_6, bpftool 4.18.0-372.211.1.el8_6, kernel-core 4.18.0-372.211.1.el8_6, kernel-tools 4.18.0-372.211.1.el8_6, python3-perf 4.18.0-372.211.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:61973
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.164.1.el8_8, kernel 4.18.0-477.164.1.el8_8, bpftool 4.18.0-477.164.1.el8_8, kernel-core 4.18.0-477.164.1.el8_8, kernel-tools 4.18.0-477.164.1.el8_8, python3-perf 4.18.0-477.164.1.el8_8, +8 more
    fixed: vendor fix RHSA-2026:62345
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-687.46.1.el9_8, kernel-debuginfo-common-s390x 5.14.0-687.46.1.el9_8, kernel-debuginfo-common-x86_64 5.14.0-687.46.1.el9_8, kernel-debuginfo-common-aarch64 5.14.0-687.46.1.el9_8, kernel-debuginfo-common-ppc64le 5.14.0-687.46.1.el9_8
    fixed: vendor fix RHSA-2026:66180
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-211.54.1.el10_2, kernel-debuginfo-common-s390x 6.12.0-211.54.1.el10_2, kernel-debuginfo-common-x86_64 6.12.0-211.54.1.el10_2, kernel-debuginfo-common-aarch64 6.12.0-211.54.1.el10_2, kernel-debuginfo-common-ppc64le 6.12.0-211.54.1.el10_2
    fixed: vendor fix RHSA-2026:66355
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.102.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.102.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.102.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.102.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.102.1.el10_0
    fixed: vendor fix RHSA-2026:62609
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.160.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.160.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.160.1.el8_10
    fixed: vendor fix RHSA-2026:66000
  • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt 3.10.0-1160.160.1.rt56.1312.el7, kernel-rt-trace 3.10.0-1160.160.1.rt56.1312.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.160.1.rt56.1312.el7
    fixed: vendor fix RHSA-2026:63539
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.160.1.rt7.501.el8_10, kernel-rt-kvm 4.18.0-553.160.1.rt7.501.el8_10, kernel-rt-core 4.18.0-553.160.1.rt7.501.el8_10, kernel-rt-modules 4.18.0-553.160.1.rt7.501.el8_10, kernel-rt-debug-kvm 4.18.0-553.160.1.rt7.501.el8_10, kernel-rt-debug-core 4.18.0-553.160.1.rt7.501.el8_10, +4 more
    fixed: vendor fix RHSA-2026:64770
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-687.46.1.el9_8, kernel-rt-64k 5.14.0-687.46.1.el9_8, kernel-rt-core 5.14.0-687.46.1.el9_8, kernel-rt-modules 5.14.0-687.46.1.el9_8, kernel-rt-64k-core 5.14.0-687.46.1.el9_8, kernel-rt-debug-core 5.14.0-687.46.1.el9_8, +14 more
    fixed: vendor fix RHSA-2026:66180
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-211.54.1.el10_2, kernel-rt-64k 6.12.0-211.54.1.el10_2, kernel-rt-core 6.12.0-211.54.1.el10_2, kernel-rt-modules 6.12.0-211.54.1.el10_2, kernel-rt-64k-core 6.12.0-211.54.1.el10_2, kernel-rt-debug-core 6.12.0-211.54.1.el10_2, +14 more
    fixed: vendor fix RHSA-2026:66355
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.190.1.rt14.475.el9_2, kernel-rt-core 5.14.0-284.190.1.rt14.475.el9_2, kernel-rt-modules 5.14.0-284.190.1.rt14.475.el9_2, kernel-rt-debug-core 5.14.0-284.190.1.rt14.475.el9_2, kernel-rt-modules-core 5.14.0-284.190.1.rt14.475.el9_2, kernel-rt-debug-modules 5.14.0-284.190.1.rt14.475.el9_2, +4 more
    fixed: vendor fix RHSA-2026:62522
  • Red Hat Enterprise Linux Real Time E4S (v.9.4) kernel-rt 5.14.0-427.148.1.el9_4, kernel-rt-core 5.14.0-427.148.1.el9_4, kernel-rt-modules 5.14.0-427.148.1.el9_4, kernel-rt-debug-core 5.14.0-427.148.1.el9_4, kernel-rt-modules-core 5.14.0-427.148.1.el9_4, kernel-rt-debug-modules 5.14.0-427.148.1.el9_4, +4 more
    fixed: vendor fix RHSA-2026:62346
  • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.102.1.el10_0, kernel-rt-64k 6.12.0-55.102.1.el10_0, kernel-rt-core 6.12.0-55.102.1.el10_0, kernel-rt-modules 6.12.0-55.102.1.el10_0, kernel-rt-64k-core 6.12.0-55.102.1.el10_0, kernel-rt-debug-core 6.12.0-55.102.1.el10_0, +14 more
    fixed: vendor fix RHSA-2026:62609
  • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt 5.14.0-570.138.1.el9_6, kernel-rt-64k 5.14.0-570.138.1.el9_6, kernel-rt-core 5.14.0-570.138.1.el9_6, kernel-rt-modules 5.14.0-570.138.1.el9_6, kernel-rt-64k-core 5.14.0-570.138.1.el9_6, kernel-rt-debug-core 5.14.0-570.138.1.el9_6, +14 more
    fixed: vendor fix RHSA-2026:62568
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-687.46.1.el9_8, kernel-rt-core 5.14.0-687.46.1.el9_8, kernel-rt-modules 5.14.0-687.46.1.el9_8, kernel-rt-debug-core 5.14.0-687.46.1.el9_8, kernel-rt-modules-core 5.14.0-687.46.1.el9_8, kernel-rt-debug-modules 5.14.0-687.46.1.el9_8, +4 more
    fixed: vendor fix RHSA-2026:66180
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-211.54.1.el10_2, kernel-rt-core 6.12.0-211.54.1.el10_2, kernel-rt-modules 6.12.0-211.54.1.el10_2, kernel-rt-debug-core 6.12.0-211.54.1.el10_2, kernel-rt-modules-core 6.12.0-211.54.1.el10_2, kernel-rt-debug-modules 6.12.0-211.54.1.el10_2, +4 more
    fixed: vendor fix RHSA-2026:66355
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.190.1.rt14.475.el9_2, kernel-rt-kvm 5.14.0-284.190.1.rt14.475.el9_2, kernel-rt-core 5.14.0-284.190.1.rt14.475.el9_2, kernel-rt-modules 5.14.0-284.190.1.rt14.475.el9_2, kernel-rt-debug-kvm 5.14.0-284.190.1.rt14.475.el9_2, kernel-rt-debug-core 5.14.0-284.190.1.rt14.475.el9_2, +6 more
    fixed: vendor fix RHSA-2026:62522
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) kernel-rt 5.14.0-427.148.1.el9_4, kernel-rt-kvm 5.14.0-427.148.1.el9_4, kernel-rt-core 5.14.0-427.148.1.el9_4, kernel-rt-modules 5.14.0-427.148.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.148.1.el9_4, kernel-rt-debug-core 5.14.0-427.148.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:62346
  • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt 6.12.0-55.102.1.el10_0, kernel-rt-kvm 6.12.0-55.102.1.el10_0, kernel-rt-core 6.12.0-55.102.1.el10_0, kernel-rt-modules 6.12.0-55.102.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.102.1.el10_0, kernel-rt-debug-core 6.12.0-55.102.1.el10_0, +6 more
    fixed: vendor fix RHSA-2026:62609
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt 5.14.0-570.138.1.el9_6, kernel-rt-kvm 5.14.0-570.138.1.el9_6, kernel-rt-core 5.14.0-570.138.1.el9_6, kernel-rt-modules 5.14.0-570.138.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.138.1.el9_6, kernel-rt-debug-core 5.14.0-570.138.1.el9_6, +6 more
    fixed: vendor fix RHSA-2026:62568

3 more fixed, 1 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 SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
23 d ago

Exploit prediction

0.58% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Linux Linux

Classification

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.