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high 7.8

CVE-2025-38350 json

net/sched: Always pass notifications when child class becomes empty

published last yr. modified 26d ago also EUVD-2025-21953

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 22%
public exploits
0
none known

Summary

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

net/sched: Always pass notifications when child class becomes empty

Certain classful qdiscs may invoke their classes' dequeue handler on an enqueue operation. This may unexpectedly empty the child qdisc and thus make an in-flight class passive via qlen_notify(). Most qdiscs do not expect such behaviour at this point in time and may re-activate the class eventually anyways which will lead to a use-after-free.

The referenced fix commit attempted to fix this behavior for the HFSC case by moving the backlog accounting around, though this turned out to be incomplete since the parent's parent may run into the issue too. The following reproducer demonstrates this use-after-free:

tc qdisc add dev lo root handle 1: drr tc filter add dev lo parent 1: basic classid 1:1 tc class add dev lo parent 1: classid 1:1 drr tc qdisc add dev lo parent 1:1 handle 2: hfsc def 1 tc class add dev lo parent 2: classid 2:1 hfsc rt m1 8 d 1 m2 0 tc qdisc add dev lo parent 2:1 handle 3: netem tc qdisc add dev lo parent 3:1 handle 4: blackhole

echo 1 | socat -u STDIN UDP4-DATAGRAM:127.0.0.1:8888 tc class delete dev lo classid 1:1 echo 1 | socat -u STDIN UDP4-DATAGRAM:127.0.0.1:8888

Since backlog accounting issues leading to a use-after-frees on stale class pointers is a recurring pattern at this point, this patch takes a different approach. Instead of trying to fix the accounting, the patch ensures that qdisc_tree_reduce_backlog always calls qlen_notify when the child qdisc is empty. This solves the problem because deletion of qdiscs always involves a call to qdisc_reset() and / or qdisc_purge_queue() which ultimately resets its qlen to 0 thus causing the following qdisc_tree_reduce_backlog() to report to the parent. Note that this may call qlen_notify on passive classes multiple times. This is not a problem after the recent patch series that made all the classful qdiscs qlen_notify() handlers idempotent.

Patch / fix

  • Linux Linux 5.4.296, 5.10.240, 5.15.187, 6.1.144, 6.6.97, 6.12.37, 6.15, 6.15.6, 6.16
  • Siemens RUGGEDCOM RST2428P V3.3
  • Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family V3.3
  • Siemens SCALANCE XCH328 V3.3
  • Siemens SCALANCE XCM324 V3.3
  • Siemens SCALANCE XCM328 V3.3
  • Siemens SCALANCE XCM332 V3.3
  • Siemens SCALANCE XRH334 (24 V DC, 8xFO, CC) V3.3
  • Siemens SCALANCE XRM334 (230 V AC, 12xFO) V3.3
  • Siemens SCALANCE XRM334 (230 V AC, 8xFO) V3.3
  • Siemens SCALANCE XRM334 (230V AC, 2x10G, 24xSFP, 8xSFP+) V3.3
  • Siemens SCALANCE XRM334 (24 V DC, 12xFO) V3.3
  • Siemens SCALANCE XRM334 (24 V DC, 8xFO) V3.3
  • Siemens SCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+) V3.3
  • Siemens SCALANCE XRM334 (2x230 V AC, 12xFO) V3.3
  • Siemens SCALANCE XRM334 (2x230 V AC, 8xFO) V3.3
  • Siemens SCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+) V3.3
  • linux Debian 12 6.1.147-1
  • linux Debian 14, Debian 13 6.12.37-1

debian advisories DEBIAN-CVE-2025-38350

  • linux Ubuntu 22.04 LTS 5.15.0-153.163
  • linux Ubuntu 24.04 LTS 6.8.0-79.79
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1091.98
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1036.38
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1091.100
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1037.39
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1088.94
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1033.37

ubuntu advisories UBUNTU-CVE-2025-38350

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

  • kpatch-patch-4_18_0-553_72_1 RHEL 8 1-2.el8_10
  • kpatch-patch-4_18_0-553_16_1 RHEL 8 1-10.el8_10
  • kpatch-patch-4_18_0-553_30_1 RHEL 8 1-9.el8_10
  • kpatch-patch-4_18_0-553_40_1 RHEL 8 1-7.el8_10
  • kpatch-patch-4_18_0-553_53_1 RHEL 8 1-5.el8_10
  • kpatch-patch-5_14_0-570_17_1 RHEL 9 1-10.el9_6
  • kernel RHEL 8 4.18.0-553.75.1.el8_10
  • perf RHEL 8 4.18.0-553.75.1.el8_10

red hat advisories RHSA-2025:16582RHSA-2025:16583RHSA-2025:16580RHSA-2025:16540RHSA-2025:16541RHSA-2025:16538

  • 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-2025:03384-1SUSE-SU-2025:03344-1

  • 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 AlmaLinux 8 4.18.0-553.75.1.el8_10
  • perf AlmaLinux 8 4.18.0-553.75.1.el8_10
  • bpftool AlmaLinux 8 4.18.0-553.75.1.el8_10
  • kernel-core AlmaLinux 8 4.18.0-553.75.1.el8_10
  • kernel-tools AlmaLinux 8 4.18.0-553.75.1.el8_10
  • python3-perf AlmaLinux 8 4.18.0-553.75.1.el8_10
  • kernel-modules AlmaLinux 8 4.18.0-553.75.1.el8_10
  • kernel-zfcpdump AlmaLinux 8 4.18.0-553.75.1.el8_10

almalinux advisories ALSA-2025:15785ALSA-2025:15786ALSA-2025:15447ALSA-2025:15011

  • kernel Rocky Linux 9 5.14.0-570.39.1.el9_6

rocky linux advisories RLSA-2025:15011

  • kernel CBL-Mariner 2.0 5.15.200.1-1

azure linux advisories AZL-72593

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

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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-2025-38350 updated cvss 6.4

kernel: net/sched: Always pass notifications when child class becomes empty

  • 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.9.4) libperf 5.14.0-427.85.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.85.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.85.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.85.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.85.1.el9_4
    fixed: vendor fix RHSA-2025:15016
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-570.39.1.el9_6, perf 5.14.0-570.39.1.el9_6, rtla 5.14.0-570.39.1.el9_6, python3-perf 5.14.0-570.39.1.el9_6, kernel-devel-matched 5.14.0-570.39.1.el9_6, kernel-64k-devel-matched 5.14.0-570.39.1.el9_6, +7 more
    fixed: vendor fix RHSA-2025:15011
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-55.31.1.el10_0, perf 6.12.0-55.31.1.el10_0, rtla 6.12.0-55.31.1.el10_0, python3-perf 6.12.0-55.31.1.el10_0, kernel-devel-matched 6.12.0-55.31.1.el10_0, kernel-64k-devel-matched 6.12.0-55.31.1.el10_0, +7 more
    fixed: vendor fix RHSA-2025:15447
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.144.1.el9_0, kernel-devel-matched 5.14.0-70.144.1.el9_0, kernel-debug-devel-matched 5.14.0-70.144.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.144.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.144.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.144.1.el9_0, +2 more
    fixed: vendor fix RHSA-2025:14744
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.134.1.el9_2, rtla 5.14.0-284.134.1.el9_2, kernel-devel-matched 5.14.0-284.134.1.el9_2, kernel-64k-devel-matched 5.14.0-284.134.1.el9_2, kernel-debug-devel-matched 5.14.0-284.134.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.134.1.el9_2, +5 more
    fixed: vendor fix RHSA-2025:14696
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.85.1.el9_4, perf 5.14.0-427.85.1.el9_4, rtla 5.14.0-427.85.1.el9_4, kernel-devel-matched 5.14.0-427.85.1.el9_4, kernel-64k-devel-matched 5.14.0-427.85.1.el9_4, kernel-debug-devel-matched 5.14.0-427.85.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:15016
show 31 more
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.75.1.el8_10, kernel 4.18.0-553.75.1.el8_10, bpftool 4.18.0-553.75.1.el8_10, kernel-core 4.18.0-553.75.1.el8_10, kernel-tools 4.18.0-553.75.1.el8_10, python3-perf 4.18.0-553.75.1.el8_10, +20 more
    fixed: vendor fix RHSA-2025:15785
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-570.39.1.el9_6, kernel-64k 5.14.0-570.39.1.el9_6, kernel-core 5.14.0-570.39.1.el9_6, kernel-tools 5.14.0-570.39.1.el9_6, kernel-modules 5.14.0-570.39.1.el9_6, kernel-64k-core 5.14.0-570.39.1.el9_6, +28 more
    fixed: vendor fix RHSA-2025:15011
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-55.31.1.el10_0, kernel-64k 6.12.0-55.31.1.el10_0, kernel-core 6.12.0-55.31.1.el10_0, kernel-tools 6.12.0-55.31.1.el10_0, kernel-modules 6.12.0-55.31.1.el10_0, kernel-64k-core 6.12.0-55.31.1.el10_0, +27 more
    fixed: vendor fix RHSA-2025:15447
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) perf 4.18.0-193.165.1.el8_2, kernel 4.18.0-193.165.1.el8_2, bpftool 4.18.0-193.165.1.el8_2, kernel-core 4.18.0-193.165.1.el8_2, kernel-tools 4.18.0-193.165.1.el8_2, python3-perf 4.18.0-193.165.1.el8_2, +8 more
    fixed: vendor fix RHSA-2025:14742
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.170.1.el8_4, kernel 4.18.0-305.170.1.el8_4, bpftool 4.18.0-305.170.1.el8_4, kernel-core 4.18.0-305.170.1.el8_4, kernel-tools 4.18.0-305.170.1.el8_4, python3-perf 4.18.0-305.170.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:15035
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.158.1.el8_6, kernel 4.18.0-372.158.1.el8_6, bpftool 4.18.0-372.158.1.el8_6, kernel-core 4.18.0-372.158.1.el8_6, kernel-tools 4.18.0-372.158.1.el8_6, python3-perf 4.18.0-372.158.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.158.1.el8_6, kernel 4.18.0-372.158.1.el8_6, bpftool 4.18.0-372.158.1.el8_6, kernel-core 4.18.0-372.158.1.el8_6, kernel-tools 4.18.0-372.158.1.el8_6, python3-perf 4.18.0-372.158.1.el8_6, +19 more
    fixed: vendor fix RHSA-2025:14692
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.107.1.el8_8, kernel 4.18.0-477.107.1.el8_8, bpftool 4.18.0-477.107.1.el8_8, kernel-core 4.18.0-477.107.1.el8_8, kernel-tools 4.18.0-477.107.1.el8_8, python3-perf 4.18.0-477.107.1.el8_8, +13 more
    fixed: vendor fix RHSA-2025:14511
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) kernel 5.14.0-70.144.1.el9_0, bpftool 5.14.0-70.144.1.el9_0, kernel-core 5.14.0-70.144.1.el9_0, kernel-tools 5.14.0-70.144.1.el9_0, python3-perf 5.14.0-70.144.1.el9_0, kernel-modules 5.14.0-70.144.1.el9_0, +18 more
    fixed: vendor fix RHSA-2025:14744
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.134.1.el9_2, kernel 5.14.0-284.134.1.el9_2, kernel-64k 5.14.0-284.134.1.el9_2, kernel-core 5.14.0-284.134.1.el9_2, kernel-tools 5.14.0-284.134.1.el9_2, python3-perf 5.14.0-284.134.1.el9_2, +32 more
    fixed: vendor fix RHSA-2025:14696
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.85.1.el9_4, kernel 5.14.0-427.85.1.el9_4, kernel-64k 5.14.0-427.85.1.el9_4, kernel-core 5.14.0-427.85.1.el9_4, kernel-tools 5.14.0-427.85.1.el9_4, python3-perf 5.14.0-427.85.1.el9_4, +33 more
    fixed: vendor fix RHSA-2025:15016
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.170.1.el8_4, kernel 4.18.0-305.170.1.el8_4, bpftool 4.18.0-305.170.1.el8_4, kernel-core 4.18.0-305.170.1.el8_4, kernel-tools 4.18.0-305.170.1.el8_4, python3-perf 4.18.0-305.170.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:15035
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) perf 4.18.0-372.158.1.el8_6, kernel 4.18.0-372.158.1.el8_6, bpftool 4.18.0-372.158.1.el8_6, kernel-core 4.18.0-372.158.1.el8_6, kernel-tools 4.18.0-372.158.1.el8_6, python3-perf 4.18.0-372.158.1.el8_6, +8 more
    fixed: vendor fix RHSA-2025:14692
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.107.1.el8_8, kernel 4.18.0-477.107.1.el8_8, bpftool 4.18.0-477.107.1.el8_8, kernel-core 4.18.0-477.107.1.el8_8, kernel-tools 4.18.0-477.107.1.el8_8, python3-perf 4.18.0-477.107.1.el8_8, +8 more
    fixed: vendor fix RHSA-2025:14511
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-570.39.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.39.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.39.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.39.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.39.1.el9_6
    fixed: vendor fix RHSA-2025:15011
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-55.31.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.31.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.31.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.31.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.31.1.el10_0
    fixed: vendor fix RHSA-2025:15447
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.75.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.75.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.75.1.el8_10
    fixed: vendor fix RHSA-2025:15785
  • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt 3.10.0-1160.137.1.rt56.1289.el7, kernel-rt-trace 3.10.0-1160.137.1.rt56.1289.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.137.1.rt56.1289.el7
    fixed: vendor fix RHSA-2025:14746
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.75.1.rt7.416.el8_10, kernel-rt-kvm 4.18.0-553.75.1.rt7.416.el8_10, kernel-rt-core 4.18.0-553.75.1.rt7.416.el8_10, kernel-rt-modules 4.18.0-553.75.1.rt7.416.el8_10, kernel-rt-debug-kvm 4.18.0-553.75.1.rt7.416.el8_10, kernel-rt-debug-core 4.18.0-553.75.1.rt7.416.el8_10, +4 more
    fixed: vendor fix RHSA-2025:15786
  • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt 5.14.0-70.144.1.rt21.216.el9_0, kernel-rt-kvm 5.14.0-70.144.1.rt21.216.el9_0, kernel-rt-core 5.14.0-70.144.1.rt21.216.el9_0, kernel-rt-modules 5.14.0-70.144.1.rt21.216.el9_0, kernel-rt-debug-kvm 5.14.0-70.144.1.rt21.216.el9_0, kernel-rt-debug-core 5.14.0-70.144.1.rt21.216.el9_0, +4 more
    fixed: vendor fix RHSA-2025:14749
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-570.39.1.el9_6, kernel-rt-64k 5.14.0-570.39.1.el9_6, kernel-rt-core 5.14.0-570.39.1.el9_6, kernel-rt-modules 5.14.0-570.39.1.el9_6, kernel-rt-64k-core 5.14.0-570.39.1.el9_6, kernel-rt-debug-core 5.14.0-570.39.1.el9_6, +14 more
    fixed: vendor fix RHSA-2025:15011
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-55.31.1.el10_0, kernel-rt-64k 6.12.0-55.31.1.el10_0, kernel-rt-core 6.12.0-55.31.1.el10_0, kernel-rt-modules 6.12.0-55.31.1.el10_0, kernel-rt-64k-core 6.12.0-55.31.1.el10_0, kernel-rt-debug-core 6.12.0-55.31.1.el10_0, +14 more
    fixed: vendor fix RHSA-2025:15447
  • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt 5.14.0-70.144.1.rt21.216.el9_0, kernel-rt-core 5.14.0-70.144.1.rt21.216.el9_0, kernel-rt-modules 5.14.0-70.144.1.rt21.216.el9_0, kernel-rt-debug-core 5.14.0-70.144.1.rt21.216.el9_0, kernel-rt-debug-modules 5.14.0-70.144.1.rt21.216.el9_0, kernel-rt-modules-extra 5.14.0-70.144.1.rt21.216.el9_0, +2 more
    fixed: vendor fix RHSA-2025:14749
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.134.1.rt14.419.el9_2, kernel-rt-core 5.14.0-284.134.1.rt14.419.el9_2, kernel-rt-modules 5.14.0-284.134.1.rt14.419.el9_2, kernel-rt-debug-core 5.14.0-284.134.1.rt14.419.el9_2, kernel-rt-modules-core 5.14.0-284.134.1.rt14.419.el9_2, kernel-rt-debug-modules 5.14.0-284.134.1.rt14.419.el9_2, +4 more
    fixed: vendor fix RHSA-2025:14691
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.85.1.el9_4, kernel-rt-core 5.14.0-427.85.1.el9_4, kernel-rt-modules 5.14.0-427.85.1.el9_4, kernel-rt-debug-core 5.14.0-427.85.1.el9_4, kernel-rt-modules-core 5.14.0-427.85.1.el9_4, kernel-rt-debug-modules 5.14.0-427.85.1.el9_4, +4 more
    fixed: vendor fix RHSA-2025:15016
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-570.39.1.el9_6, kernel-rt-kvm 5.14.0-570.39.1.el9_6, kernel-rt-core 5.14.0-570.39.1.el9_6, kernel-rt-modules 5.14.0-570.39.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.39.1.el9_6, kernel-rt-debug-core 5.14.0-570.39.1.el9_6, +6 more
    fixed: vendor fix RHSA-2025:15011
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-55.31.1.el10_0, kernel-rt-kvm 6.12.0-55.31.1.el10_0, kernel-rt-core 6.12.0-55.31.1.el10_0, kernel-rt-modules 6.12.0-55.31.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.31.1.el10_0, kernel-rt-debug-core 6.12.0-55.31.1.el10_0, +6 more
    fixed: vendor fix RHSA-2025:15447
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.134.1.rt14.419.el9_2, kernel-rt-kvm 5.14.0-284.134.1.rt14.419.el9_2, kernel-rt-core 5.14.0-284.134.1.rt14.419.el9_2, kernel-rt-modules 5.14.0-284.134.1.rt14.419.el9_2, kernel-rt-debug-kvm 5.14.0-284.134.1.rt14.419.el9_2, kernel-rt-debug-core 5.14.0-284.134.1.rt14.419.el9_2, +6 more
    fixed: vendor fix RHSA-2025:14691
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.85.1.el9_4, kernel-rt-kvm 5.14.0-427.85.1.el9_4, kernel-rt-core 5.14.0-427.85.1.el9_4, kernel-rt-modules 5.14.0-427.85.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.85.1.el9_4, kernel-rt-debug-core 5.14.0-427.85.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:15016
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.75.1.rt7.416.el8_10, kernel-rt-core 4.18.0-553.75.1.rt7.416.el8_10, kernel-rt-modules 4.18.0-553.75.1.rt7.416.el8_10, kernel-rt-debug-core 4.18.0-553.75.1.rt7.416.el8_10, kernel-rt-debug-modules 4.18.0-553.75.1.rt7.416.el8_10, kernel-rt-modules-extra 4.18.0-553.75.1.rt7.416.el8_10, +2 more
    fixed: vendor fix RHSA-2025:15786
  • Red Hat Enterprise Linux Server (v. 7 ELS) perf 3.10.0-1160.137.1.el7, kernel 3.10.0-1160.137.1.el7, bpftool 3.10.0-1160.137.1.el7, python-perf 3.10.0-1160.137.1.el7, kernel-kdump 3.10.0-1160.137.1.el7, kernel-tools 3.10.0-1160.137.1.el7, +7 more
    fixed: vendor fix RHSA-2025:14748
  • Red Hat Enterprise Linux Server AUS (v. 7.7) perf 3.10.0-1062.99.1.el7, kernel 3.10.0-1062.99.1.el7, bpftool 3.10.0-1062.99.1.el7, python-perf 3.10.0-1062.99.1.el7, kernel-tools 3.10.0-1062.99.1.el7, kernel-tools-libs 3.10.0-1062.99.1.el7, +2 more
    fixed: vendor fix RHSA-2025:14413

2 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 7.1

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 ICSA-26-043-06 updated cvss 7.1

Siemens SINEC OS

  • Siemens RUGGEDCOM RST2428P (6GK6242-6PA00) < 3.3
    affected: fixed in V3.3 support.industry.siemens.com
  • Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family < 3.3
    affected: fixed in V3.3
  • Siemens SCALANCE XCH328 (6GK5328-4TS01-2EC2) < 3.3 Siemens SCALANCE XCM324 (6GK5324-8TS01-2AC2) < 3.3 Siemens SCALANCE XCM328 (6GK5328-4TS01-2AC2) < 3.3 Siemens SCALANCE XCM332 (6GK5332-0GA01-2AC2) < 3.3 Siemens SCALANCE XRH334 (24 V DC, 8xFO, CC) (6GK5334-2TS01-2ER3) < 3.3 Siemens SCALANCE XRM334 (2x230 V AC, 8xFO) (6GK5334-2TS01-4AR3) < 3.3
    +8 more products
    Siemens SCALANCE XRM334 (2x230 V AC, 12xFO) (6GK5334-3TS01-4AR3) < 3.3 Siemens SCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+) (6GK5334-5TS01-4AR3) < 3.3 Siemens SCALANCE XRM334 (24 V DC, 8xFO) (6GK5334-2TS01-2AR3) < 3.3 Siemens SCALANCE XRM334 (24 V DC, 12xFO) (6GK5334-3TS01-2AR3) < 3.3 Siemens SCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+) (6GK5334-5TS01-2AR3) < 3.3 Siemens SCALANCE XRM334 (230 V AC, 8xFO) (6GK5334-2TS01-3AR3) < 3.3 Siemens SCALANCE XRM334 (230 V AC, 12xFO) (6GK5334-3TS01-3AR3) < 3.3 Siemens SCALANCE XRM334 (230V AC, 2x10G, 24xSFP, 8xSFP+) (6GK5334-5TS01-3AR3) < 3.3
    affected: fixed in V3.3 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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
4mo ago

Exploit prediction

0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-09).

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 Linux
  • Siemens RUGGEDCOM RST2428P
  • Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family
  • Siemens SCALANCE XCH328
  • Siemens SCALANCE XCM324
  • Siemens SCALANCE XCM328
  • Siemens SCALANCE XCM332
  • Siemens SCALANCE XRH334 (24 V DC, 8xFO, CC)
  • Siemens SCALANCE XRM334 (230 V AC, 12xFO)
  • Siemens SCALANCE XRM334 (230 V AC, 8xFO)
  • Siemens SCALANCE XRM334 (230V AC, 2x10G, 24xSFP, 8xSFP+)
  • Siemens SCALANCE XRM334 (24 V DC, 12xFO)
  • Siemens SCALANCE XRM334 (24 V DC, 8xFO)
  • Siemens SCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+)
  • Siemens SCALANCE XRM334 (2x230 V AC, 12xFO)
  • Siemens SCALANCE XRM334 (2x230 V AC, 8xFO)
  • Siemens SCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+)
  • 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 Intel 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.