Skip to content
Fencer Vulns
high 8.2

CVE-2026-43190 json

netfilter: xt_tcpmss: check remaining length before reading optlen

published 2026-05-06 6 mo ago modified 2026-10-19 20 d ago also EUVD-2026-27750

cvss
8.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

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

netfilter: xt_tcpmss: check remaining length before reading optlen

Quoting reporter: In net/netfilter/xt_tcpmss.c (lines 53-68), the TCP option parser reads op[i+1] directly without validating the remaining option length.

If the last byte of the option field is not EOL/NOP (0/1), the code attempts to index op[i+1]. In the case where i + 1 == optlen, this causes an out-of-bounds read, accessing memory past the optlen boundary (either reading beyond the stack buffer _opt or the following payload).

Patch / fix

  • Linux Linux 5.10.252, 5.15.202, 6.1.165, 6.6.128, 6.12.75, 6.18.16, 6.19.6, 7.0
  • linux Debian 12 6.1.170-1
  • linux Debian 13 6.12.85-1
  • linux Debian 14 6.19.6-1

debian advisories DEBIAN-CVE-2026-43190

  • linux Ubuntu 22.04 LTS 5.15.0-186.196
  • linux Ubuntu 24.04 LTS 6.8.0-134.134
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1112.119
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1060.63
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1112.122
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1063.69
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1108.114
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1058.64

ubuntu advisories UBUNTU-CVE-2026-43190

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-rt RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-kvm RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-core RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-modules RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-debug-kvm RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-debug-core RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-debug-modules RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-modules-extra RHEL 8 4.18.0-553.126.1.rt7.467.el8_10

red hat advisories RHSA-2026:44694RHSA-2026:41236RHSA-2026:27729RHSA-2026:26563RHSA-2026:26535RHSA-2026:26515

  • kernel-livepatch-MICRO-6-0-RT_Update_13 Linux Micro 6.1, Linux Micro 6.0 9-1.1
  • kernel-livepatch-SLE16_Update_11 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 4-160000.1.1
  • kernel-livepatch-SLE16_Update_8 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 5-160000.1.1
  • kernel-livepatch-SLE16_Update_2 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 11-160000.1.1
  • kernel-livepatch-SLE16_Update_6 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 7-160000.1.1
  • kernel-livepatch-SLE16_Update_5 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 8-160000.1.1
  • kernel-livepatch-SLE16_Update_0 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 15-160000.4.3
  • kernel-livepatch-MICRO-6-0-RT_Update_10 Linux Micro 6.1, Linux Micro 6.0 18-1.1

suse advisories SUSE-SU-2026:22689-1SUSE-SU-2026:22711-1SUSE-SU-2026:22763-1SUSE-SU-2026:22877-1SUSE-SU-2026:22762-1SUSE-SU-2026:22875-1

  • kernel AlmaLinux 9 5.14.0-687.12.1.el9_8
  • rv AlmaLinux 9 5.14.0-687.12.1.el9_8
  • perf AlmaLinux 9 5.14.0-687.12.1.el9_8
  • rtla AlmaLinux 9 5.14.0-687.12.1.el9_8
  • libperf AlmaLinux 9 5.14.0-687.12.1.el9_8
  • kernel-rt AlmaLinux 9 5.14.0-687.12.1.el9_8
  • kernel-64k AlmaLinux 9 5.14.0-687.12.1.el9_8
  • kernel-core AlmaLinux 9 5.14.0-687.12.1.el9_8

almalinux advisories ALSA-2026:21556ALSA-2026:21557ALSA-2026:21706ALSA-2026:21745

  • kernel Rocky Linux 10 6.12.0-211.18.1.el10_2
  • kernel-rt Rocky Linux 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel Rocky Linux 8 4.18.0-553.126.1.el8_10
  • kernel Rocky Linux 9 5.14.0-687.12.1.el9_8

rocky linux advisories RLSA-2026:21557RLSA-2026:21745RLSA-2026:21706RLSA-2026:21556

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-2026-43190 updated cvss 7.5

kernel: netfilter: xt_tcpmss: check remaining length before reading optlen

  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    affected: workaround, no fix planned “Out of support scope”
  • 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 EUS (v.9.6) libperf 5.14.0-570.120.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.120.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.120.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.120.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.120.1.el9_6
    fixed: vendor fix RHSA-2026:25218
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-687.12.1.el9_8, perf 5.14.0-687.12.1.el9_8, rtla 5.14.0-687.12.1.el9_8, python3-perf 5.14.0-687.12.1.el9_8, kernel-devel-matched 5.14.0-687.12.1.el9_8, kernel-64k-devel-matched 5.14.0-687.12.1.el9_8, +7 more
    fixed: vendor fix RHSA-2026:21556
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-211.18.1.el10_2, perf 6.12.0-211.18.1.el10_2, rtla 6.12.0-211.18.1.el10_2, python3-perf 6.12.0-211.18.1.el10_2, kernel-devel-matched 6.12.0-211.18.1.el10_2, kernel-64k-devel-matched 6.12.0-211.18.1.el10_2, +7 more
    fixed: vendor fix RHSA-2026:21557
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.176.1.el9_2, rtla 5.14.0-284.176.1.el9_2, kernel-devel-matched 5.14.0-284.176.1.el9_2, kernel-64k-devel-matched 5.14.0-284.176.1.el9_2, kernel-debug-devel-matched 5.14.0-284.176.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.176.1.el9_2, +5 more
    fixed: vendor fix RHSA-2026:26515
  • Red Hat Enterprise Linux AppStream E4S (v.9.4) rv 5.14.0-427.130.1.el9_4, perf 5.14.0-427.130.1.el9_4, rtla 5.14.0-427.130.1.el9_4, kernel-devel-matched 5.14.0-427.130.1.el9_4, kernel-64k-devel-matched 5.14.0-427.130.1.el9_4, kernel-debug-devel-matched 5.14.0-427.130.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:25028
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.92.1.el10_0, perf 6.12.0-55.92.1.el10_0, rtla 6.12.0-55.92.1.el10_0, python3-perf 6.12.0-55.92.1.el10_0, kernel-devel-matched 6.12.0-55.92.1.el10_0, kernel-64k-devel-matched 6.12.0-55.92.1.el10_0, +7 more
    fixed: vendor fix RHSA-2026:44694
show 32 more
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.120.1.el9_6, perf 5.14.0-570.120.1.el9_6, rtla 5.14.0-570.120.1.el9_6, python3-perf 5.14.0-570.120.1.el9_6, kernel-devel-matched 5.14.0-570.120.1.el9_6, kernel-64k-devel-matched 5.14.0-570.120.1.el9_6, +7 more
    fixed: vendor fix RHSA-2026:25218
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.126.1.el8_10, kernel 4.18.0-553.126.1.el8_10, bpftool 4.18.0-553.126.1.el8_10, kernel-core 4.18.0-553.126.1.el8_10, kernel-tools 4.18.0-553.126.1.el8_10, python3-perf 4.18.0-553.126.1.el8_10, +15 more
    fixed: vendor fix RHSA-2026:21706
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-687.12.1.el9_8, kernel-64k 5.14.0-687.12.1.el9_8, kernel-core 5.14.0-687.12.1.el9_8, kernel-tools 5.14.0-687.12.1.el9_8, kernel-modules 5.14.0-687.12.1.el9_8, kernel-64k-core 5.14.0-687.12.1.el9_8, +27 more
    fixed: vendor fix RHSA-2026:21556
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-211.18.1.el10_2, kernel-64k 6.12.0-211.18.1.el10_2, kernel-core 6.12.0-211.18.1.el10_2, kernel-tools 6.12.0-211.18.1.el10_2, kernel-modules 6.12.0-211.18.1.el10_2, kernel-64k-core 6.12.0-211.18.1.el10_2, +28 more
    fixed: vendor fix RHSA-2026:21557
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.194.1.el8_4, kernel 4.18.0-305.194.1.el8_4, bpftool 4.18.0-305.194.1.el8_4, kernel-core 4.18.0-305.194.1.el8_4, kernel-tools 4.18.0-305.194.1.el8_4, python3-perf 4.18.0-305.194.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:26535
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.195.1.el8_6, kernel 4.18.0-372.195.1.el8_6, bpftool 4.18.0-372.195.1.el8_6, kernel-core 4.18.0-372.195.1.el8_6, kernel-tools 4.18.0-372.195.1.el8_6, python3-perf 4.18.0-372.195.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:25533
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.147.1.el8_8, kernel 4.18.0-477.147.1.el8_8, bpftool 4.18.0-477.147.1.el8_8, kernel-core 4.18.0-477.147.1.el8_8, kernel-tools 4.18.0-477.147.1.el8_8, python3-perf 4.18.0-477.147.1.el8_8, +9 more
    fixed: vendor fix RHSA-2026:26563
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.176.1.el9_2, kernel 5.14.0-284.176.1.el9_2, kernel-64k 5.14.0-284.176.1.el9_2, kernel-core 5.14.0-284.176.1.el9_2, kernel-tools 5.14.0-284.176.1.el9_2, python3-perf 5.14.0-284.176.1.el9_2, +28 more
    fixed: vendor fix RHSA-2026:26515
  • Red Hat Enterprise Linux BaseOS E4S (v.9.4) bpftool 7.3.0-427.130.1.el9_4, kernel 5.14.0-427.130.1.el9_4, kernel-64k 5.14.0-427.130.1.el9_4, kernel-core 5.14.0-427.130.1.el9_4, kernel-tools 5.14.0-427.130.1.el9_4, python3-perf 5.14.0-427.130.1.el9_4, +28 more
    fixed: vendor fix RHSA-2026:25028
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.92.1.el10_0, kernel-64k 6.12.0-55.92.1.el10_0, kernel-core 6.12.0-55.92.1.el10_0, kernel-tools 6.12.0-55.92.1.el10_0, kernel-modules 6.12.0-55.92.1.el10_0, kernel-64k-core 6.12.0-55.92.1.el10_0, +27 more
    fixed: vendor fix RHSA-2026:44694
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.120.1.el9_6, kernel-64k 5.14.0-570.120.1.el9_6, kernel-core 5.14.0-570.120.1.el9_6, kernel-tools 5.14.0-570.120.1.el9_6, kernel-modules 5.14.0-570.120.1.el9_6, kernel-64k-core 5.14.0-570.120.1.el9_6, +27 more
    fixed: vendor fix RHSA-2026:25218
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.194.1.el8_4, kernel 4.18.0-305.194.1.el8_4, bpftool 4.18.0-305.194.1.el8_4, kernel-core 4.18.0-305.194.1.el8_4, kernel-tools 4.18.0-305.194.1.el8_4, python3-perf 4.18.0-305.194.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:26535
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) perf 4.18.0-372.195.1.el8_6, kernel 4.18.0-372.195.1.el8_6, bpftool 4.18.0-372.195.1.el8_6, kernel-core 4.18.0-372.195.1.el8_6, kernel-tools 4.18.0-372.195.1.el8_6, python3-perf 4.18.0-372.195.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:25533
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.147.1.el8_8, kernel 4.18.0-477.147.1.el8_8, bpftool 4.18.0-477.147.1.el8_8, kernel-core 4.18.0-477.147.1.el8_8, kernel-tools 4.18.0-477.147.1.el8_8, python3-perf 4.18.0-477.147.1.el8_8, +8 more
    fixed: vendor fix RHSA-2026:26563
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-687.12.1.el9_8, kernel-debuginfo-common-s390x 5.14.0-687.12.1.el9_8, kernel-debuginfo-common-x86_64 5.14.0-687.12.1.el9_8, kernel-debuginfo-common-aarch64 5.14.0-687.12.1.el9_8, kernel-debuginfo-common-ppc64le 5.14.0-687.12.1.el9_8
    fixed: vendor fix RHSA-2026:21556
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-211.18.1.el10_2, kernel-debuginfo-common-s390x 6.12.0-211.18.1.el10_2, kernel-debuginfo-common-x86_64 6.12.0-211.18.1.el10_2, kernel-debuginfo-common-aarch64 6.12.0-211.18.1.el10_2, kernel-debuginfo-common-ppc64le 6.12.0-211.18.1.el10_2
    fixed: vendor fix RHSA-2026:21557
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.92.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.92.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.92.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.92.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.92.1.el10_0
    fixed: vendor fix RHSA-2026:44694
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.126.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.126.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.126.1.el8_10
    fixed: vendor fix RHSA-2026:21706
  • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt 3.10.0-1160.155.1.rt56.1307.el7, kernel-rt-trace 3.10.0-1160.155.1.rt56.1307.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.155.1.rt56.1307.el7
    fixed: vendor fix RHSA-2026:41236
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-kvm 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-core 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-modules 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-debug-kvm 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-debug-core 4.18.0-553.126.1.rt7.467.el8_10, +4 more
    fixed: vendor fix RHSA-2026:21745
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-687.12.1.el9_8, kernel-rt-64k 5.14.0-687.12.1.el9_8, kernel-rt-core 5.14.0-687.12.1.el9_8, kernel-rt-modules 5.14.0-687.12.1.el9_8, kernel-rt-64k-core 5.14.0-687.12.1.el9_8, kernel-rt-debug-core 5.14.0-687.12.1.el9_8, +14 more
    fixed: vendor fix RHSA-2026:21556
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-211.18.1.el10_2, kernel-rt-64k 6.12.0-211.18.1.el10_2, kernel-rt-core 6.12.0-211.18.1.el10_2, kernel-rt-modules 6.12.0-211.18.1.el10_2, kernel-rt-64k-core 6.12.0-211.18.1.el10_2, kernel-rt-debug-core 6.12.0-211.18.1.el10_2, +14 more
    fixed: vendor fix RHSA-2026:21557
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-core 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-modules 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-debug-core 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-modules-core 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-debug-modules 5.14.0-284.176.1.rt14.461.el9_2, +4 more
    fixed: vendor fix RHSA-2026:26462
  • Red Hat Enterprise Linux Real Time E4S (v.9.4) kernel-rt 5.14.0-427.130.1.el9_4, kernel-rt-core 5.14.0-427.130.1.el9_4, kernel-rt-modules 5.14.0-427.130.1.el9_4, kernel-rt-debug-core 5.14.0-427.130.1.el9_4, kernel-rt-modules-core 5.14.0-427.130.1.el9_4, kernel-rt-debug-modules 5.14.0-427.130.1.el9_4, +4 more
    fixed: vendor fix RHSA-2026:25028
  • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.92.1.el10_0, kernel-rt-64k 6.12.0-55.92.1.el10_0, kernel-rt-core 6.12.0-55.92.1.el10_0, kernel-rt-modules 6.12.0-55.92.1.el10_0, kernel-rt-64k-core 6.12.0-55.92.1.el10_0, kernel-rt-debug-core 6.12.0-55.92.1.el10_0, +14 more
    fixed: vendor fix RHSA-2026:44694
  • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt 5.14.0-570.120.1.el9_6, kernel-rt-64k 5.14.0-570.120.1.el9_6, kernel-rt-core 5.14.0-570.120.1.el9_6, kernel-rt-modules 5.14.0-570.120.1.el9_6, kernel-rt-64k-core 5.14.0-570.120.1.el9_6, kernel-rt-debug-core 5.14.0-570.120.1.el9_6, +14 more
    fixed: vendor fix RHSA-2026:25218
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-687.12.1.el9_8, kernel-rt-core 5.14.0-687.12.1.el9_8, kernel-rt-modules 5.14.0-687.12.1.el9_8, kernel-rt-debug-core 5.14.0-687.12.1.el9_8, kernel-rt-modules-core 5.14.0-687.12.1.el9_8, kernel-rt-debug-modules 5.14.0-687.12.1.el9_8, +4 more
    fixed: vendor fix RHSA-2026:21556
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-211.18.1.el10_2, kernel-rt-core 6.12.0-211.18.1.el10_2, kernel-rt-modules 6.12.0-211.18.1.el10_2, kernel-rt-debug-core 6.12.0-211.18.1.el10_2, kernel-rt-modules-core 6.12.0-211.18.1.el10_2, kernel-rt-debug-modules 6.12.0-211.18.1.el10_2, +4 more
    fixed: vendor fix RHSA-2026:21557
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-kvm 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-core 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-modules 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-debug-kvm 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-debug-core 5.14.0-284.176.1.rt14.461.el9_2, +6 more
    fixed: vendor fix RHSA-2026:26462
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) kernel-rt 5.14.0-427.130.1.el9_4, kernel-rt-kvm 5.14.0-427.130.1.el9_4, kernel-rt-core 5.14.0-427.130.1.el9_4, kernel-rt-modules 5.14.0-427.130.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.130.1.el9_4, kernel-rt-debug-core 5.14.0-427.130.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:25028
  • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt 6.12.0-55.92.1.el10_0, kernel-rt-kvm 6.12.0-55.92.1.el10_0, kernel-rt-core 6.12.0-55.92.1.el10_0, kernel-rt-modules 6.12.0-55.92.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.92.1.el10_0, kernel-rt-debug-core 6.12.0-55.92.1.el10_0, +6 more
    fixed: vendor fix RHSA-2026:44694
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt 5.14.0-570.120.1.el9_6, kernel-rt-kvm 5.14.0-570.120.1.el9_6, kernel-rt-core 5.14.0-570.120.1.el9_6, kernel-rt-modules 5.14.0-570.120.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.120.1.el9_6, kernel-rt-debug-core 5.14.0-570.120.1.el9_6, +6 more
    fixed: vendor fix RHSA-2026:25218

3 more fixed 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
partial
Assessed
24 d ago

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Affected products

  • Linux Linux

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.