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Fencer Vulns
critical 9.8

CVE-2025-38724 in the critical feed json

nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm()

published 2025-09-04 14 mo ago modified 2026-10-19 20 d ago also EUVD-2025-26745

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits
0
none known

Summary

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

nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm()

Lei Lu recently reported that nfsd4_setclientid_confirm() did not check the return value from get_client_locked(). a SETCLIENTID_CONFIRM could race with a confirmed client expiring and fail to get a reference. That could later lead to a UAF.

Fix this by getting a reference early in the case where there is an extant confirmed client. If that fails then treat it as if there were no confirmed client found at all.

In the case where the unconfirmed client is expiring, just fail and return the result from get_client_locked().

Patch / fix

  • Linux Linux 5.4.297, 5.10.241, 5.15.190, 6.1.149, 6.6.103, 6.12.43, 6.15.11, 6.16.2, 6.17
  • Siemens SIMATIC CN 4100 V5.0
  • linux Debian 12 6.1.153-1
  • linux Debian 13 6.12.43-1
  • linux Debian 14 6.16.3-1

debian advisories DEBIAN-CVE-2025-38724

  • linux Ubuntu 22.04 LTS 5.15.0-163.173
  • linux Ubuntu 24.04 LTS 6.8.0-100.100
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1097.104
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1046.49
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1097.106
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1047.50
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1093.99
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1043.48

ubuntu advisories UBUNTU-CVE-2025-38724

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 5.14.0-611.11.1.el9_7
  • rv RHEL 9 5.14.0-611.11.1.el9_7
  • perf RHEL 9 5.14.0-611.11.1.el9_7
  • rtla RHEL 9 5.14.0-611.11.1.el9_7
  • libperf RHEL 9 5.14.0-611.11.1.el9_7
  • kernel-rt RHEL 9 5.14.0-611.11.1.el9_7
  • kernel-64k RHEL 9 5.14.0-611.11.1.el9_7
  • kernel-core RHEL 9 5.14.0-611.11.1.el9_7

red hat advisories RHSA-2026:0576RHSA-2026:0537RHSA-2026:0535RHSA-2026:0534RHSA-2026:0532RHSA-2026:0489

  • kernel-rt Linux Micro 6.2 6.12.0-160000.6.1
  • kernel-64kb SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.6.1
  • kernel-source SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.6.1
  • kernel-default SLES 16.0, SLE High Availability Extension 16.0, Linux Micro 6.2 +1 more 6.12.0-160000.6.1
  • kernel-default-base SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.6.1.160000.2.4
  • kernel-syms SLES 16.0, Linux Micro Extras 6.2, SLES for SAP applications 16.0 6.12.0-160000.6.1
  • kernel-obs-qa SLES for SAP applications 16.0, SLES 16.0 6.12.0-160000.6.1
  • kernel-kvmsmall SLES for SAP applications 16.0, SLES 16.0 6.12.0-160000.6.1

suse advisories SUSE-SU-2025:21074-1SUSE-SU-2025:21139-1SUSE-SU-2026:20560-1SUSE-SU-2025:21179-1SUSE-SU-2025:4189-1SUSE-SU-2025:4141-1

  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.6.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.6.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.6.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.6.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.6.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.6.1
  • kernel-default openSUSE Leap 16.0 6.12.0-160000.6.1
  • kernel-kvmsmall openSUSE Leap 16.0 6.12.0-160000.6.1

opensuse advisories openSUSE-SU-2025:20081-1

  • kernel-rt AlmaLinux 8 4.18.0-553.87.1.rt7.428.el8_10
  • kernel-rt-core AlmaLinux 8 4.18.0-553.87.1.rt7.428.el8_10
  • kernel-rt-modules AlmaLinux 8 4.18.0-553.87.1.rt7.428.el8_10
  • kernel-rt-debug-core AlmaLinux 8 4.18.0-553.87.1.rt7.428.el8_10
  • kernel-rt-debug-modules AlmaLinux 8 4.18.0-553.87.1.rt7.428.el8_10
  • kernel-rt-modules-extra AlmaLinux 8 4.18.0-553.87.1.rt7.428.el8_10
  • kernel-rt-debug-modules-extra AlmaLinux 8 4.18.0-553.87.1.rt7.428.el8_10
  • kernel AlmaLinux 8 4.18.0-553.87.1.el8_10

almalinux advisories ALSA-2025:22387ALSA-2025:22388ALSA-2025:22395ALSA-2025:22405

  • kernel Rocky Linux 10 6.12.0-124.16.1.el10_1
  • kernel Rocky Linux 9 5.14.0-611.11.1.el9_7
  • kernel-rt Rocky Linux 8 4.18.0-553.87.1.rt7.428.el8_10
  • kernel Rocky Linux 8 4.18.0-553.87.1.el8_10

rocky linux advisories RLSA-2025:22395RLSA-2025:22405RLSA-2025:22387RLSA-2025:22388

  • kernel Azure Linux 3.0 6.6.104.2-1
  • kernel CBL-Mariner 2.0 5.15.200.1-1

azure linux advisories AZL-66854AZL-73839

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-2025-38724 updated cvss 7.0

kernel: nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm()

  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more 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: no fix available
  • Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.106.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.106.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.106.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.106.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.106.1.el9_4
    fixed: vendor fix RHSA-2026:0489
  • Red Hat CodeReady Linux Builder EUS (v.9.6) libperf 5.14.0-570.69.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.69.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.69.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.69.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.69.1.el9_6
    fixed: vendor fix RHSA-2025:22392
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-611.11.1.el9_7, perf 5.14.0-611.11.1.el9_7, rtla 5.14.0-611.11.1.el9_7, python3-perf 5.14.0-611.11.1.el9_7, kernel-devel-matched 5.14.0-611.11.1.el9_7, kernel-64k-devel-matched 5.14.0-611.11.1.el9_7, +7 more
    fixed: vendor fix RHSA-2025:22405
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-124.16.1.el10_1, perf 6.12.0-124.16.1.el10_1, rtla 6.12.0-124.16.1.el10_1, python3-perf 6.12.0-124.16.1.el10_1, kernel-devel-matched 6.12.0-124.16.1.el10_1, kernel-64k-devel-matched 6.12.0-124.16.1.el10_1, +7 more
    fixed: vendor fix RHSA-2025:22395
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.161.1.el9_0, kernel-devel-matched 5.14.0-70.161.1.el9_0, kernel-debug-devel-matched 5.14.0-70.161.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.161.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.161.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.161.1.el9_0, +2 more
    fixed: vendor fix RHSA-2026:0576
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.152.1.el9_2, rtla 5.14.0-284.152.1.el9_2, kernel-devel-matched 5.14.0-284.152.1.el9_2, kernel-64k-devel-matched 5.14.0-284.152.1.el9_2, kernel-debug-devel-matched 5.14.0-284.152.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.152.1.el9_2, +5 more
    fixed: vendor fix RHSA-2026:0535
show 30 more
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.47.1.el10_0, perf 6.12.0-55.47.1.el10_0, rtla 6.12.0-55.47.1.el10_0, python3-perf 6.12.0-55.47.1.el10_0, kernel-devel-matched 6.12.0-55.47.1.el10_0, kernel-64k-devel-matched 6.12.0-55.47.1.el10_0, +7 more
    fixed: vendor fix RHSA-2025:22571
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.106.1.el9_4, perf 5.14.0-427.106.1.el9_4, rtla 5.14.0-427.106.1.el9_4, kernel-devel-matched 5.14.0-427.106.1.el9_4, kernel-64k-devel-matched 5.14.0-427.106.1.el9_4, kernel-debug-devel-matched 5.14.0-427.106.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:0489
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.69.1.el9_6, perf 5.14.0-570.69.1.el9_6, rtla 5.14.0-570.69.1.el9_6, python3-perf 5.14.0-570.69.1.el9_6, kernel-devel-matched 5.14.0-570.69.1.el9_6, kernel-64k-devel-matched 5.14.0-570.69.1.el9_6, +7 more
    fixed: vendor fix RHSA-2025:22392
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.87.1.el8_10, kernel 4.18.0-553.87.1.el8_10, bpftool 4.18.0-553.87.1.el8_10, kernel-core 4.18.0-553.87.1.el8_10, kernel-tools 4.18.0-553.87.1.el8_10, python3-perf 4.18.0-553.87.1.el8_10, +15 more
    fixed: vendor fix RHSA-2025:22388
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-611.11.1.el9_7, kernel-64k 5.14.0-611.11.1.el9_7, kernel-core 5.14.0-611.11.1.el9_7, kernel-tools 5.14.0-611.11.1.el9_7, kernel-modules 5.14.0-611.11.1.el9_7, kernel-64k-core 5.14.0-611.11.1.el9_7, +27 more
    fixed: vendor fix RHSA-2025:22405
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-124.16.1.el10_1, kernel-64k 6.12.0-124.16.1.el10_1, kernel-core 6.12.0-124.16.1.el10_1, kernel-tools 6.12.0-124.16.1.el10_1, kernel-modules 6.12.0-124.16.1.el10_1, kernel-64k-core 6.12.0-124.16.1.el10_1, +28 more
    fixed: vendor fix RHSA-2025:22395
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) perf 4.18.0-193.178.1.el8_2, kernel 4.18.0-193.178.1.el8_2, bpftool 4.18.0-193.178.1.el8_2, kernel-core 4.18.0-193.178.1.el8_2, kernel-tools 4.18.0-193.178.1.el8_2, python3-perf 4.18.0-193.178.1.el8_2, +8 more
    fixed: vendor fix RHSA-2025:23445
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.182.1.el8_4, kernel 4.18.0-305.182.1.el8_4, bpftool 4.18.0-305.182.1.el8_4, kernel-core 4.18.0-305.182.1.el8_4, kernel-tools 4.18.0-305.182.1.el8_4, python3-perf 4.18.0-305.182.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:23463
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.172.1.el8_6, kernel 4.18.0-372.172.1.el8_6, bpftool 4.18.0-372.172.1.el8_6, kernel-core 4.18.0-372.172.1.el8_6, kernel-tools 4.18.0-372.172.1.el8_6, python3-perf 4.18.0-372.172.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.172.1.el8_6, kernel 4.18.0-372.172.1.el8_6, bpftool 4.18.0-372.172.1.el8_6, kernel-core 4.18.0-372.172.1.el8_6, kernel-tools 4.18.0-372.172.1.el8_6, python3-perf 4.18.0-372.172.1.el8_6, +15 more
    fixed: vendor fix RHSA-2025:23000
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.124.1.el8_8, kernel 4.18.0-477.124.1.el8_8, bpftool 4.18.0-477.124.1.el8_8, kernel-core 4.18.0-477.124.1.el8_8, kernel-tools 4.18.0-477.124.1.el8_8, python3-perf 4.18.0-477.124.1.el8_8, +9 more
    fixed: vendor fix RHSA-2026:0532
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) kernel 5.14.0-70.161.1.el9_0, bpftool 5.14.0-70.161.1.el9_0, kernel-core 5.14.0-70.161.1.el9_0, kernel-tools 5.14.0-70.161.1.el9_0, python3-perf 5.14.0-70.161.1.el9_0, kernel-modules 5.14.0-70.161.1.el9_0, +14 more
    fixed: vendor fix RHSA-2026:0576
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.152.1.el9_2, kernel 5.14.0-284.152.1.el9_2, kernel-64k 5.14.0-284.152.1.el9_2, kernel-core 5.14.0-284.152.1.el9_2, kernel-tools 5.14.0-284.152.1.el9_2, python3-perf 5.14.0-284.152.1.el9_2, +28 more
    fixed: vendor fix RHSA-2026:0535
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.47.1.el10_0, kernel-64k 6.12.0-55.47.1.el10_0, kernel-core 6.12.0-55.47.1.el10_0, kernel-tools 6.12.0-55.47.1.el10_0, kernel-modules 6.12.0-55.47.1.el10_0, kernel-64k-core 6.12.0-55.47.1.el10_0, +27 more
    fixed: vendor fix RHSA-2025:22571
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.106.1.el9_4, kernel 5.14.0-427.106.1.el9_4, kernel-64k 5.14.0-427.106.1.el9_4, kernel-core 5.14.0-427.106.1.el9_4, kernel-tools 5.14.0-427.106.1.el9_4, python3-perf 5.14.0-427.106.1.el9_4, +28 more
    fixed: vendor fix RHSA-2026:0489
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.69.1.el9_6, kernel-64k 5.14.0-570.69.1.el9_6, kernel-core 5.14.0-570.69.1.el9_6, kernel-tools 5.14.0-570.69.1.el9_6, kernel-modules 5.14.0-570.69.1.el9_6, kernel-64k-core 5.14.0-570.69.1.el9_6, +27 more
    fixed: vendor fix RHSA-2025:22392
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.182.1.el8_4, kernel 4.18.0-305.182.1.el8_4, bpftool 4.18.0-305.182.1.el8_4, kernel-core 4.18.0-305.182.1.el8_4, kernel-tools 4.18.0-305.182.1.el8_4, python3-perf 4.18.0-305.182.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:23463
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) perf 4.18.0-372.172.1.el8_6, kernel 4.18.0-372.172.1.el8_6, bpftool 4.18.0-372.172.1.el8_6, kernel-core 4.18.0-372.172.1.el8_6, kernel-tools 4.18.0-372.172.1.el8_6, python3-perf 4.18.0-372.172.1.el8_6, +8 more
    fixed: vendor fix RHSA-2025:23000
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.124.1.el8_8, kernel 4.18.0-477.124.1.el8_8, bpftool 4.18.0-477.124.1.el8_8, kernel-core 4.18.0-477.124.1.el8_8, kernel-tools 4.18.0-477.124.1.el8_8, python3-perf 4.18.0-477.124.1.el8_8, +8 more
    fixed: vendor fix RHSA-2026:0532
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-611.11.1.el9_7, kernel-debuginfo-common-s390x 5.14.0-611.11.1.el9_7, kernel-debuginfo-common-x86_64 5.14.0-611.11.1.el9_7, kernel-debuginfo-common-aarch64 5.14.0-611.11.1.el9_7, kernel-debuginfo-common-ppc64le 5.14.0-611.11.1.el9_7
    fixed: vendor fix RHSA-2025:22405
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-124.16.1.el10_1, kernel-debuginfo-common-s390x 6.12.0-124.16.1.el10_1, kernel-debuginfo-common-x86_64 6.12.0-124.16.1.el10_1, kernel-debuginfo-common-aarch64 6.12.0-124.16.1.el10_1, kernel-debuginfo-common-ppc64le 6.12.0-124.16.1.el10_1
    fixed: vendor fix RHSA-2025:22395
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.47.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.47.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.47.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.47.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.47.1.el10_0
    fixed: vendor fix RHSA-2025:22571
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.87.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.87.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.87.1.el8_10
    fixed: vendor fix RHSA-2025:22388
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.87.1.rt7.428.el8_10, kernel-rt-kvm 4.18.0-553.87.1.rt7.428.el8_10, kernel-rt-core 4.18.0-553.87.1.rt7.428.el8_10, kernel-rt-modules 4.18.0-553.87.1.rt7.428.el8_10, kernel-rt-debug-kvm 4.18.0-553.87.1.rt7.428.el8_10, kernel-rt-debug-core 4.18.0-553.87.1.rt7.428.el8_10, +4 more
    fixed: vendor fix RHSA-2025:22387
  • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-kvm 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-core 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-modules 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-debug-kvm 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-debug-core 5.14.0-70.161.1.rt21.233.el9_0, +4 more
    fixed: vendor fix RHSA-2026:0537
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-611.11.1.el9_7, kernel-rt-64k 5.14.0-611.11.1.el9_7, kernel-rt-core 5.14.0-611.11.1.el9_7, kernel-rt-modules 5.14.0-611.11.1.el9_7, kernel-rt-64k-core 5.14.0-611.11.1.el9_7, kernel-rt-debug-core 5.14.0-611.11.1.el9_7, +14 more
    fixed: vendor fix RHSA-2025:22405
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-124.16.1.el10_1, kernel-rt-64k 6.12.0-124.16.1.el10_1, kernel-rt-core 6.12.0-124.16.1.el10_1, kernel-rt-modules 6.12.0-124.16.1.el10_1, kernel-rt-64k-core 6.12.0-124.16.1.el10_1, kernel-rt-debug-core 6.12.0-124.16.1.el10_1, +14 more
    fixed: vendor fix RHSA-2025:22395
  • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-core 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-modules 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-debug-core 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-debug-modules 5.14.0-70.161.1.rt21.233.el9_0, kernel-rt-modules-extra 5.14.0-70.161.1.rt21.233.el9_0, +2 more
    fixed: vendor fix RHSA-2026:0537
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.152.1.rt14.437.el9_2, kernel-rt-core 5.14.0-284.152.1.rt14.437.el9_2, kernel-rt-modules 5.14.0-284.152.1.rt14.437.el9_2, kernel-rt-debug-core 5.14.0-284.152.1.rt14.437.el9_2, kernel-rt-modules-core 5.14.0-284.152.1.rt14.437.el9_2, kernel-rt-debug-modules 5.14.0-284.152.1.rt14.437.el9_2, +4 more
    fixed: vendor fix RHSA-2026:0534
  • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.47.1.el10_0, kernel-rt-64k 6.12.0-55.47.1.el10_0, kernel-rt-core 6.12.0-55.47.1.el10_0, kernel-rt-modules 6.12.0-55.47.1.el10_0, kernel-rt-64k-core 6.12.0-55.47.1.el10_0, kernel-rt-debug-core 6.12.0-55.47.1.el10_0, +14 more
    fixed: vendor fix RHSA-2025:22571
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.106.1.el9_4, kernel-rt-core 5.14.0-427.106.1.el9_4, kernel-rt-modules 5.14.0-427.106.1.el9_4, kernel-rt-debug-core 5.14.0-427.106.1.el9_4, kernel-rt-modules-core 5.14.0-427.106.1.el9_4, kernel-rt-debug-modules 5.14.0-427.106.1.el9_4, +4 more
    fixed: vendor fix RHSA-2026:0489

8 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 ICSA-25-162-05 updated cvss 7.8

Siemens SIMATIC S7-1500 CPU family

  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= 3.1.5 Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= 3.1.5 Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= 3.1.5
    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 SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
4 mo ago

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 35% 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
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 Linux
  • Siemens SIMATIC CN 4100
  • 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

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.