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Fencer Vulns
critical 9.8

CVE-2026-43493 in the critical feed json

crypto: pcrypt - Fix handling of MAY_BACKLOG requests

published 2026-05-19 5 mo ago modified 2026-10-19 20 d ago also EUVD-2026-30884

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

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

crypto: pcrypt - Fix handling of MAY_BACKLOG requests

MAY_BACKLOG requests can return EBUSY. Handle them by checking for that value and filtering out EINPROGRESS notifications.

Patch / fix

  • Linux Linux 5.10.258, 5.15.209, 6.1.175, 6.6.140, 6.12.86, 6.18.27, 7.0.4, 7.1
  • linux Debian 12 6.1.176-1
  • linux Debian 13 6.12.86-1
  • linux Debian 14 7.0.4-1

debian advisories DEBIAN-CVE-2026-43493

  • linux Ubuntu 22.04 LTS 5.15.0-185.195
  • linux Ubuntu 24.04 LTS 6.8.0-134.134
  • linux Ubuntu 25.10 6.17.0-40.40
  • linux Ubuntu 26.04 LTS 7.0.0-27.27
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1111.118
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1060.63
  • linux-aws Ubuntu 25.10 6.17.0-1019.19
  • linux-aws Ubuntu 26.04 LTS 7.0.0-1008.8

ubuntu advisories UBUNTU-CVE-2026-43493

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 5.14.0-687.46.1.el9_8
  • rv RHEL 9 5.14.0-687.46.1.el9_8
  • perf RHEL 9 5.14.0-687.46.1.el9_8
  • rtla RHEL 9 5.14.0-687.46.1.el9_8
  • libperf RHEL 9 5.14.0-687.46.1.el9_8
  • kernel-rt RHEL 9 5.14.0-687.46.1.el9_8
  • kernel-64k RHEL 9 5.14.0-687.46.1.el9_8
  • kernel-core RHEL 9 5.14.0-687.46.1.el9_8

red hat advisories RHSA-2026:85000RHSA-2026:75560RHSA-2026:74174RHSA-2026:66180RHSA-2026:66000RHSA-2026:64770

  • kernel-source Linux Micro 6.1, Linux Micro 6.0 6.4.0-51.1
  • kernel-default Linux Micro 6.1, Linux Micro 6.0 6.4.0-51.1
  • kernel-kvmsmall Linux Micro 6.1, Linux Micro 6.0 6.4.0-51.1
  • kernel-rt Linux Micro 6.1, Linux Micro 6.0 6.4.0-51.1
  • kernel-source-rt Linux Micro 6.1, Linux Micro 6.0 6.4.0-51.1
  • kernel-default SLES 16.0, SLE High Availability Extension 16.0, Linux Micro 6.2 +1 more 6.12.0-160000.37.1
  • kernel-rt Linux Micro 6.2 6.12.0-160000.37.1
  • kernel-64kb SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.37.1

suse advisories SUSE-SU-2026:23244-1SUSE-SU-2026:23241-1SUSE-SU-2026:23194-1SUSE-SU-2026:23193-1SUSE-SU-2026:3594-1SUSE-SU-2026:23237-1

  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.37.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-azure openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-default openSUSE Leap 16.0 6.12.0-160000.37.1

opensuse advisories openSUSE-SU-2026:21555-1openSUSE-SU-2026:10859-1

  • kernel AlmaLinux 8 4.18.0-553.160.1.el8_10
  • perf AlmaLinux 8 4.18.0-553.160.1.el8_10
  • bpftool AlmaLinux 8 4.18.0-553.160.1.el8_10
  • kernel-core AlmaLinux 8 4.18.0-553.160.1.el8_10
  • kernel-tools AlmaLinux 8 4.18.0-553.160.1.el8_10
  • python3-perf AlmaLinux 8 4.18.0-553.160.1.el8_10
  • kernel-modules AlmaLinux 8 4.18.0-553.160.1.el8_10
  • kernel-zfcpdump AlmaLinux 8 4.18.0-553.160.1.el8_10

almalinux advisories ALSA-2026:66000ALSA-2026:66180ALSA-2026:64770ALSA-2026:57251

  • 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
  • kernel Rocky Linux 10 6.12.0-211.49.1.el10_2

rocky linux advisories RLSA-2026:66180RLSA-2026:64770RLSA-2026:57251

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-2026-43493 updated cvss 7.0

kernel: crypto: pcrypt - Fix handling of MAY_BACKLOG requests

  • 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.9.6) libperf 5.14.0-570.146.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.146.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.146.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.146.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.146.1.el9_6
    fixed: vendor fix RHSA-2026:74174
  • 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 6.12.0-211.49.1.el10_2, perf 6.12.0-211.49.1.el10_2, rtla 6.12.0-211.49.1.el10_2, python3-perf 6.12.0-211.49.1.el10_2, kernel-devel-matched 6.12.0-211.49.1.el10_2, kernel-64k-devel-matched 6.12.0-211.49.1.el10_2, +7 more
    fixed: vendor fix RHSA-2026:57251
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.200.1.el9_2, rtla 5.14.0-284.200.1.el9_2, kernel-devel-matched 5.14.0-284.200.1.el9_2, kernel-64k-devel-matched 5.14.0-284.200.1.el9_2, kernel-debug-devel-matched 5.14.0-284.200.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.200.1.el9_2, +5 more
    fixed: vendor fix RHSA-2026:92993
  • Red Hat Enterprise Linux AppStream E4S (v.9.4) rv 5.14.0-427.158.1.el9_4, perf 5.14.0-427.158.1.el9_4, rtla 5.14.0-427.158.1.el9_4, kernel-devel-matched 5.14.0-427.158.1.el9_4, kernel-64k-devel-matched 5.14.0-427.158.1.el9_4, kernel-debug-devel-matched 5.14.0-427.158.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:91489
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.108.1.el10_0, perf 6.12.0-55.108.1.el10_0, rtla 6.12.0-55.108.1.el10_0, python3-perf 6.12.0-55.108.1.el10_0, kernel-devel-matched 6.12.0-55.108.1.el10_0, kernel-64k-devel-matched 6.12.0-55.108.1.el10_0, +7 more
    fixed: vendor fix RHSA-2026:75560
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.146.1.el9_6, perf 5.14.0-570.146.1.el9_6, rtla 5.14.0-570.146.1.el9_6, python3-perf 5.14.0-570.146.1.el9_6, kernel-devel-matched 5.14.0-570.146.1.el9_6, kernel-64k-devel-matched 5.14.0-570.146.1.el9_6, +7 more
    fixed: vendor fix RHSA-2026:74174
show 31 more
  • 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, +15 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, +27 more
    fixed: vendor fix RHSA-2026:66180
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-211.49.1.el10_2, kernel-64k 6.12.0-211.49.1.el10_2, kernel-core 6.12.0-211.49.1.el10_2, kernel-tools 6.12.0-211.49.1.el10_2, kernel-modules 6.12.0-211.49.1.el10_2, kernel-64k-core 6.12.0-211.49.1.el10_2, +28 more
    fixed: vendor fix RHSA-2026:57251
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.216.1.el8_4, kernel 4.18.0-305.216.1.el8_4, bpftool 4.18.0-305.216.1.el8_4, kernel-core 4.18.0-305.216.1.el8_4, kernel-tools 4.18.0-305.216.1.el8_4, python3-perf 4.18.0-305.216.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:91585
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.223.1.el8_6, kernel 4.18.0-372.223.1.el8_6, bpftool 4.18.0-372.223.1.el8_6, kernel-core 4.18.0-372.223.1.el8_6, kernel-tools 4.18.0-372.223.1.el8_6, python3-perf 4.18.0-372.223.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:85000
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.177.1.el8_8, kernel 4.18.0-477.177.1.el8_8, bpftool 4.18.0-477.177.1.el8_8, kernel-core 4.18.0-477.177.1.el8_8, kernel-tools 4.18.0-477.177.1.el8_8, python3-perf 4.18.0-477.177.1.el8_8, +9 more
    fixed: vendor fix RHSA-2026:92997
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.200.1.el9_2, kernel 5.14.0-284.200.1.el9_2, kernel-64k 5.14.0-284.200.1.el9_2, kernel-core 5.14.0-284.200.1.el9_2, kernel-tools 5.14.0-284.200.1.el9_2, python3-perf 5.14.0-284.200.1.el9_2, +28 more
    fixed: vendor fix RHSA-2026:92993
  • Red Hat Enterprise Linux BaseOS E4S (v.9.4) bpftool 7.3.0-427.158.1.el9_4, kernel 5.14.0-427.158.1.el9_4, kernel-64k 5.14.0-427.158.1.el9_4, kernel-core 5.14.0-427.158.1.el9_4, kernel-tools 5.14.0-427.158.1.el9_4, python3-perf 5.14.0-427.158.1.el9_4, +28 more
    fixed: vendor fix RHSA-2026:91489
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.108.1.el10_0, kernel-64k 6.12.0-55.108.1.el10_0, kernel-core 6.12.0-55.108.1.el10_0, kernel-tools 6.12.0-55.108.1.el10_0, kernel-modules 6.12.0-55.108.1.el10_0, kernel-64k-core 6.12.0-55.108.1.el10_0, +27 more
    fixed: vendor fix RHSA-2026:75560
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.146.1.el9_6, kernel-64k 5.14.0-570.146.1.el9_6, kernel-core 5.14.0-570.146.1.el9_6, kernel-tools 5.14.0-570.146.1.el9_6, kernel-modules 5.14.0-570.146.1.el9_6, kernel-64k-core 5.14.0-570.146.1.el9_6, +27 more
    fixed: vendor fix RHSA-2026:74174
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.216.1.el8_4, kernel 4.18.0-305.216.1.el8_4, bpftool 4.18.0-305.216.1.el8_4, kernel-core 4.18.0-305.216.1.el8_4, kernel-tools 4.18.0-305.216.1.el8_4, python3-perf 4.18.0-305.216.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:91585
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) perf 4.18.0-372.223.1.el8_6, kernel 4.18.0-372.223.1.el8_6, bpftool 4.18.0-372.223.1.el8_6, kernel-core 4.18.0-372.223.1.el8_6, kernel-tools 4.18.0-372.223.1.el8_6, python3-perf 4.18.0-372.223.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:85000
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.177.1.el8_8, kernel 4.18.0-477.177.1.el8_8, bpftool 4.18.0-477.177.1.el8_8, kernel-core 4.18.0-477.177.1.el8_8, kernel-tools 4.18.0-477.177.1.el8_8, python3-perf 4.18.0-477.177.1.el8_8, +8 more
    fixed: vendor fix RHSA-2026:92997
  • 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 6.12.0-211.49.1.el10_2, kernel-debuginfo-common-s390x 6.12.0-211.49.1.el10_2, kernel-debuginfo-common-x86_64 6.12.0-211.49.1.el10_2, kernel-debuginfo-common-aarch64 6.12.0-211.49.1.el10_2, kernel-debuginfo-common-ppc64le 6.12.0-211.49.1.el10_2
    fixed: vendor fix RHSA-2026:57251
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.108.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.108.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.108.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.108.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.108.1.el10_0
    fixed: vendor fix RHSA-2026:75560
  • 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 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 6.12.0-211.49.1.el10_2, kernel-rt-64k 6.12.0-211.49.1.el10_2, kernel-rt-core 6.12.0-211.49.1.el10_2, kernel-rt-modules 6.12.0-211.49.1.el10_2, kernel-rt-64k-core 6.12.0-211.49.1.el10_2, kernel-rt-debug-core 6.12.0-211.49.1.el10_2, +14 more
    fixed: vendor fix RHSA-2026:57251
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.200.1.rt14.485.el9_2, kernel-rt-core 5.14.0-284.200.1.rt14.485.el9_2, kernel-rt-modules 5.14.0-284.200.1.rt14.485.el9_2, kernel-rt-debug-core 5.14.0-284.200.1.rt14.485.el9_2, kernel-rt-modules-core 5.14.0-284.200.1.rt14.485.el9_2, kernel-rt-debug-modules 5.14.0-284.200.1.rt14.485.el9_2, +4 more
    fixed: vendor fix RHSA-2026:93047
  • Red Hat Enterprise Linux Real Time E4S (v.9.4) kernel-rt 5.14.0-427.158.1.el9_4, kernel-rt-core 5.14.0-427.158.1.el9_4, kernel-rt-modules 5.14.0-427.158.1.el9_4, kernel-rt-debug-core 5.14.0-427.158.1.el9_4, kernel-rt-modules-core 5.14.0-427.158.1.el9_4, kernel-rt-debug-modules 5.14.0-427.158.1.el9_4, +4 more
    fixed: vendor fix RHSA-2026:91489
  • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.108.1.el10_0, kernel-rt-64k 6.12.0-55.108.1.el10_0, kernel-rt-core 6.12.0-55.108.1.el10_0, kernel-rt-modules 6.12.0-55.108.1.el10_0, kernel-rt-64k-core 6.12.0-55.108.1.el10_0, kernel-rt-debug-core 6.12.0-55.108.1.el10_0, +14 more
    fixed: vendor fix RHSA-2026:75560
  • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt 5.14.0-570.146.1.el9_6, kernel-rt-64k 5.14.0-570.146.1.el9_6, kernel-rt-core 5.14.0-570.146.1.el9_6, kernel-rt-modules 5.14.0-570.146.1.el9_6, kernel-rt-64k-core 5.14.0-570.146.1.el9_6, kernel-rt-debug-core 5.14.0-570.146.1.el9_6, +14 more
    fixed: vendor fix RHSA-2026:74174
  • 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 6.12.0-211.49.1.el10_2, kernel-rt-core 6.12.0-211.49.1.el10_2, kernel-rt-modules 6.12.0-211.49.1.el10_2, kernel-rt-debug-core 6.12.0-211.49.1.el10_2, kernel-rt-modules-core 6.12.0-211.49.1.el10_2, kernel-rt-debug-modules 6.12.0-211.49.1.el10_2, +4 more
    fixed: vendor fix RHSA-2026:57251
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.200.1.rt14.485.el9_2, kernel-rt-kvm 5.14.0-284.200.1.rt14.485.el9_2, kernel-rt-core 5.14.0-284.200.1.rt14.485.el9_2, kernel-rt-modules 5.14.0-284.200.1.rt14.485.el9_2, kernel-rt-debug-kvm 5.14.0-284.200.1.rt14.485.el9_2, kernel-rt-debug-core 5.14.0-284.200.1.rt14.485.el9_2, +6 more
    fixed: vendor fix RHSA-2026:93047
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) kernel-rt 5.14.0-427.158.1.el9_4, kernel-rt-kvm 5.14.0-427.158.1.el9_4, kernel-rt-core 5.14.0-427.158.1.el9_4, kernel-rt-modules 5.14.0-427.158.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.158.1.el9_4, kernel-rt-debug-core 5.14.0-427.158.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:91489
  • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt 6.12.0-55.108.1.el10_0, kernel-rt-kvm 6.12.0-55.108.1.el10_0, kernel-rt-core 6.12.0-55.108.1.el10_0, kernel-rt-modules 6.12.0-55.108.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.108.1.el10_0, kernel-rt-debug-core 6.12.0-55.108.1.el10_0, +6 more
    fixed: vendor fix RHSA-2026:75560
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt 5.14.0-570.146.1.el9_6, kernel-rt-kvm 5.14.0-570.146.1.el9_6, kernel-rt-core 5.14.0-570.146.1.el9_6, kernel-rt-modules 5.14.0-570.146.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.146.1.el9_6, kernel-rt-debug-core 5.14.0-570.146.1.el9_6, +6 more
    fixed: vendor fix RHSA-2026:74174
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 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-core 4.18.0-553.160.1.rt7.501.el8_10, kernel-rt-debug-modules 4.18.0-553.160.1.rt7.501.el8_10, kernel-rt-modules-extra 4.18.0-553.160.1.rt7.501.el8_10, +2 more
    fixed: vendor fix RHSA-2026:64770

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 ICSA-26-295-16 updated cvss 9.8

Siemens SIMATIC S7-1500 TM MFP

  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
    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
yes
Technical impact
total
Assessed
24 d ago

Exploit prediction

0.68% chance of exploitation in the next 30 days, higher than 52% 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
  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

Classification

Weakness
  • CWE-390 Detection of Error Condition Without Action
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.