CVE-2026-46056 json
Bluetooth: hci_event: fix potential UAF in SSP passkey handlers
published 2026-05-27 5 mo ago modified 2026-10-19 20 d ago also EUVD-2026-32438
- cvss
- 8.8
- 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 20%
- public exploits
- 0
- none known
Summary
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_event: fix potential UAF in SSP passkey handlers
hci_conn lookup and field access must be covered by hdev lock in hci_user_passkey_notify_evt() and hci_keypress_notify_evt(), otherwise the connection can be freed concurrently.
Extend the hci_dev_lock critical section to cover all conn usage in both handlers.
Keep the existing keypress notification behavior unchanged by routing the early exits through a common unlock path.
Patch / fix
- Linux Linux 5.10.259, 5.15.210, 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-2026-46056
- linux Ubuntu 22.04 LTS 5.15.0-198.208
- linux Ubuntu 24.04 LTS 6.8.0-136.136
- linux Ubuntu 26.04 LTS 7.0.0-27.27
- linux-aws Ubuntu 22.04 LTS 5.15.0-1117.124
- linux-aws Ubuntu 24.04 LTS 6.8.0-1061.64
- linux-aws Ubuntu 26.04 LTS 7.0.0-1008.8
- linux-gcp Ubuntu 22.04 LTS 5.15.0-1118.128
- linux-gcp Ubuntu 24.04 LTS 6.8.0-1064.72
ubuntu advisories UBUNTU-CVE-2026-46056
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 5.14.0-687.17.1.el9_8
- rv RHEL 9 5.14.0-687.17.1.el9_8
- perf RHEL 9 5.14.0-687.17.1.el9_8
- rtla RHEL 9 5.14.0-687.17.1.el9_8
- libperf RHEL 9 5.14.0-687.17.1.el9_8
- kernel-rt RHEL 9 5.14.0-687.17.1.el9_8
- kernel-64k RHEL 9 5.14.0-687.17.1.el9_8
- kernel-core RHEL 9 5.14.0-687.17.1.el9_8
red hat advisories RHSA-2026:67723RHSA-2026:67721RHSA-2026:65711RHSA-2026:65712RHSA-2026:65709RHSA-2026:64767
- kernel-default SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Live Patching 15 SP6 +1 more 6.4.0-150600.23.130.1
- kernel-64kb SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS, SLE High Performance Computing 15 SP5-ESPOS 5.14.21-150500.55.182.1
- kernel-syms SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS +1 more 5.14.21-150500.55.182.1
- kernel-source SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +2 more 5.14.21-150500.55.182.1
- kernel-default SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +3 more 5.14.21-150500.55.182.1
- kernel-obs-build SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS +1 more 5.14.21-150500.55.182.1
- kernel-default-base SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +2 more 5.14.21-150500.55.182.1.150500.6.85.2
- kernel-source Linux Micro 6.1, Linux Micro 6.0 6.4.0-51.1
suse advisories SUSE-SU-2026:3602-1SUSE-SU-2026:3595-1SUSE-SU-2026:23244-1SUSE-SU-2026:23241-1SUSE-SU-2026:23194-1SUSE-SU-2026:23193-1
- 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-2026:10954-1
- kernel AlmaLinux 9 5.14.0-687.17.1.el9_8
- rv AlmaLinux 9 5.14.0-687.17.1.el9_8
- perf AlmaLinux 9 5.14.0-687.17.1.el9_8
- rtla AlmaLinux 9 5.14.0-687.17.1.el9_8
- libperf AlmaLinux 9 5.14.0-687.17.1.el9_8
- kernel-rt AlmaLinux 9 5.14.0-687.17.1.el9_8
- kernel-64k AlmaLinux 9 5.14.0-687.17.1.el9_8
- kernel-core AlmaLinux 9 5.14.0-687.17.1.el9_8
almalinux advisories ALSA-2026:27789ALSA-2026:27288ALSA-2026:26427ALSA-2026:26428
- kernel Rocky Linux 9 5.14.0-687.17.1.el9_8
- kernel Rocky Linux 10 6.12.0-211.26.1.el10_2
- kernel Rocky Linux 8 4.18.0-553.134.1.el8_10
rocky linux advisories RLSA-2026:27789RLSA-2026:27288RLSA-2026:26427
- git.kernel.org/stable/c/ea18732d2614557e59f4c0d8cdbe6611aeab33b7 commit
- git.kernel.org/stable/c/d28311539ac9f65e29308ea219ecaa48aa5e76e5 commit
- git.kernel.org/stable/c/b6ae482f88654db407c8c17619d4b62959b903ef commit
- git.kernel.org/stable/c/204028af77a265e31ceb4ba7f643349a3cca72b2 commit
- git.kernel.org/stable/c/01a6431766c35dfedb86e0cb5d3fc80c6d604a47 commit
- git.kernel.org/stable/c/e08d75753db17aa943d7622f09d9c217b5bfd3b8 commit
- git.kernel.org/stable/c/8c6443bb9257b780986fb67ec08565bf48ecb8d7 commit
- git.kernel.org/stable/c/85fa3512048793076eef658f66489112dcc91993 commit
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-2026-46056 updated cvss 7.1
kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers
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Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 moreaffected: no fix planned “Out of support scope”
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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 moreaffected: no fix available
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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_6fixed: vendor fix RHSA-2026:62568
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Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-687.17.1.el9_8, perf 5.14.0-687.17.1.el9_8, rtla 5.14.0-687.17.1.el9_8, python3-perf 5.14.0-687.17.1.el9_8, kernel-devel-matched 5.14.0-687.17.1.el9_8, kernel-64k-devel-matched 5.14.0-687.17.1.el9_8, +7 morefixed: vendor fix RHSA-2026:27789
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Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-211.26.1.el10_2, perf 6.12.0-211.26.1.el10_2, rtla 6.12.0-211.26.1.el10_2, python3-perf 6.12.0-211.26.1.el10_2, kernel-devel-matched 6.12.0-211.26.1.el10_2, kernel-64k-devel-matched 6.12.0-211.26.1.el10_2, +7 morefixed: vendor fix RHSA-2026:27288
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Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.191.1.el9_2, rtla 5.14.0-284.191.1.el9_2, kernel-devel-matched 5.14.0-284.191.1.el9_2, kernel-64k-devel-matched 5.14.0-284.191.1.el9_2, kernel-debug-devel-matched 5.14.0-284.191.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.191.1.el9_2, +5 morefixed: vendor fix RHSA-2026:67723
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Red Hat Enterprise Linux AppStream E4S (v.9.4) rv 5.14.0-427.149.1.el9_4, perf 5.14.0-427.149.1.el9_4, rtla 5.14.0-427.149.1.el9_4, kernel-devel-matched 5.14.0-427.149.1.el9_4, kernel-64k-devel-matched 5.14.0-427.149.1.el9_4, kernel-debug-devel-matched 5.14.0-427.149.1.el9_4, +6 morefixed: vendor fix RHSA-2026:65712
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Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.103.1.el10_0, perf 6.12.0-55.103.1.el10_0, rtla 6.12.0-55.103.1.el10_0, python3-perf 6.12.0-55.103.1.el10_0, kernel-devel-matched 6.12.0-55.103.1.el10_0, kernel-64k-devel-matched 6.12.0-55.103.1.el10_0, +7 morefixed: vendor fix RHSA-2026:64767
show 32 moreshow fewer
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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 morefixed: vendor fix RHSA-2026:62568
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Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.134.1.el8_10, kernel 4.18.0-553.134.1.el8_10, bpftool 4.18.0-553.134.1.el8_10, kernel-core 4.18.0-553.134.1.el8_10, kernel-tools 4.18.0-553.134.1.el8_10, python3-perf 4.18.0-553.134.1.el8_10, +15 morefixed: vendor fix RHSA-2026:26427
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Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-687.17.1.el9_8, kernel-64k 5.14.0-687.17.1.el9_8, kernel-core 5.14.0-687.17.1.el9_8, kernel-tools 5.14.0-687.17.1.el9_8, kernel-modules 5.14.0-687.17.1.el9_8, kernel-64k-core 5.14.0-687.17.1.el9_8, +27 morefixed: vendor fix RHSA-2026:27789
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Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-211.26.1.el10_2, kernel-64k 6.12.0-211.26.1.el10_2, kernel-core 6.12.0-211.26.1.el10_2, kernel-tools 6.12.0-211.26.1.el10_2, kernel-modules 6.12.0-211.26.1.el10_2, kernel-64k-core 6.12.0-211.26.1.el10_2, +28 morefixed: vendor fix RHSA-2026:27288
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Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.213.1.el8_6, kernel 4.18.0-372.213.1.el8_6, bpftool 4.18.0-372.213.1.el8_6, kernel-core 4.18.0-372.213.1.el8_6, kernel-tools 4.18.0-372.213.1.el8_6, python3-perf 4.18.0-372.213.1.el8_6, +8 morefixed: vendor fix RHSA-2026:65711
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Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.166.1.el8_8, kernel 4.18.0-477.166.1.el8_8, bpftool 4.18.0-477.166.1.el8_8, kernel-core 4.18.0-477.166.1.el8_8, kernel-tools 4.18.0-477.166.1.el8_8, python3-perf 4.18.0-477.166.1.el8_8, +9 morefixed: vendor fix RHSA-2026:65709
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Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.191.1.el9_2, kernel 5.14.0-284.191.1.el9_2, kernel-64k 5.14.0-284.191.1.el9_2, kernel-core 5.14.0-284.191.1.el9_2, kernel-tools 5.14.0-284.191.1.el9_2, python3-perf 5.14.0-284.191.1.el9_2, +28 morefixed: vendor fix RHSA-2026:67723
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Red Hat Enterprise Linux BaseOS E4S (v.9.4) bpftool 7.3.0-427.149.1.el9_4, kernel 5.14.0-427.149.1.el9_4, kernel-64k 5.14.0-427.149.1.el9_4, kernel-core 5.14.0-427.149.1.el9_4, kernel-tools 5.14.0-427.149.1.el9_4, python3-perf 5.14.0-427.149.1.el9_4, +28 morefixed: vendor fix RHSA-2026:65712
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Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.103.1.el10_0, kernel-64k 6.12.0-55.103.1.el10_0, kernel-core 6.12.0-55.103.1.el10_0, kernel-tools 6.12.0-55.103.1.el10_0, kernel-modules 6.12.0-55.103.1.el10_0, kernel-64k-core 6.12.0-55.103.1.el10_0, +27 morefixed: vendor fix RHSA-2026:64767
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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, +27 morefixed: vendor fix RHSA-2026:62568
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Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) perf 4.18.0-372.213.1.el8_6, kernel 4.18.0-372.213.1.el8_6, bpftool 4.18.0-372.213.1.el8_6, kernel-core 4.18.0-372.213.1.el8_6, kernel-tools 4.18.0-372.213.1.el8_6, python3-perf 4.18.0-372.213.1.el8_6, +8 morefixed: vendor fix RHSA-2026:65711
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Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.166.1.el8_8, kernel 4.18.0-477.166.1.el8_8, bpftool 4.18.0-477.166.1.el8_8, kernel-core 4.18.0-477.166.1.el8_8, kernel-tools 4.18.0-477.166.1.el8_8, python3-perf 4.18.0-477.166.1.el8_8, +8 morefixed: vendor fix RHSA-2026:65709
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Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-687.17.1.el9_8, kernel-debuginfo-common-s390x 5.14.0-687.17.1.el9_8, kernel-debuginfo-common-x86_64 5.14.0-687.17.1.el9_8, kernel-debuginfo-common-aarch64 5.14.0-687.17.1.el9_8, kernel-debuginfo-common-ppc64le 5.14.0-687.17.1.el9_8fixed: vendor fix RHSA-2026:27789
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Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-211.26.1.el10_2, kernel-debuginfo-common-s390x 6.12.0-211.26.1.el10_2, kernel-debuginfo-common-x86_64 6.12.0-211.26.1.el10_2, kernel-debuginfo-common-aarch64 6.12.0-211.26.1.el10_2, kernel-debuginfo-common-ppc64le 6.12.0-211.26.1.el10_2fixed: vendor fix RHSA-2026:27288
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Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.103.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.103.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.103.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.103.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.103.1.el10_0fixed: vendor fix RHSA-2026:64767
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Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.134.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.134.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.134.1.el8_10fixed: vendor fix RHSA-2026:26427
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Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt 3.10.0-1160.169.1.rt56.1321.el7, kernel-rt-trace 3.10.0-1160.169.1.rt56.1321.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.169.1.rt56.1321.el7fixed: vendor fix RHSA-2026:95721
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Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.134.1.rt7.475.el8_10, kernel-rt-kvm 4.18.0-553.134.1.rt7.475.el8_10, kernel-rt-core 4.18.0-553.134.1.rt7.475.el8_10, kernel-rt-modules 4.18.0-553.134.1.rt7.475.el8_10, kernel-rt-debug-kvm 4.18.0-553.134.1.rt7.475.el8_10, kernel-rt-debug-core 4.18.0-553.134.1.rt7.475.el8_10, +4 morefixed: vendor fix RHSA-2026:26428
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Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-687.17.1.el9_8, kernel-rt-64k 5.14.0-687.17.1.el9_8, kernel-rt-core 5.14.0-687.17.1.el9_8, kernel-rt-modules 5.14.0-687.17.1.el9_8, kernel-rt-64k-core 5.14.0-687.17.1.el9_8, kernel-rt-debug-core 5.14.0-687.17.1.el9_8, +14 morefixed: vendor fix RHSA-2026:27789
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Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-211.26.1.el10_2, kernel-rt-64k 6.12.0-211.26.1.el10_2, kernel-rt-core 6.12.0-211.26.1.el10_2, kernel-rt-modules 6.12.0-211.26.1.el10_2, kernel-rt-64k-core 6.12.0-211.26.1.el10_2, kernel-rt-debug-core 6.12.0-211.26.1.el10_2, +14 morefixed: vendor fix RHSA-2026:27288
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Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-core 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-modules 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-debug-core 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-modules-core 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-debug-modules 5.14.0-284.191.1.rt14.476.el9_2, +4 morefixed: vendor fix RHSA-2026:67721
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Red Hat Enterprise Linux Real Time E4S (v.9.4) kernel-rt 5.14.0-427.149.1.el9_4, kernel-rt-core 5.14.0-427.149.1.el9_4, kernel-rt-modules 5.14.0-427.149.1.el9_4, kernel-rt-debug-core 5.14.0-427.149.1.el9_4, kernel-rt-modules-core 5.14.0-427.149.1.el9_4, kernel-rt-debug-modules 5.14.0-427.149.1.el9_4, +4 morefixed: vendor fix RHSA-2026:65712
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Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.103.1.el10_0, kernel-rt-64k 6.12.0-55.103.1.el10_0, kernel-rt-core 6.12.0-55.103.1.el10_0, kernel-rt-modules 6.12.0-55.103.1.el10_0, kernel-rt-64k-core 6.12.0-55.103.1.el10_0, kernel-rt-debug-core 6.12.0-55.103.1.el10_0, +14 morefixed: vendor fix RHSA-2026:64767
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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 morefixed: vendor fix RHSA-2026:62568
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Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-687.17.1.el9_8, kernel-rt-core 5.14.0-687.17.1.el9_8, kernel-rt-modules 5.14.0-687.17.1.el9_8, kernel-rt-debug-core 5.14.0-687.17.1.el9_8, kernel-rt-modules-core 5.14.0-687.17.1.el9_8, kernel-rt-debug-modules 5.14.0-687.17.1.el9_8, +4 morefixed: vendor fix RHSA-2026:27789
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Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-211.26.1.el10_2, kernel-rt-core 6.12.0-211.26.1.el10_2, kernel-rt-modules 6.12.0-211.26.1.el10_2, kernel-rt-debug-core 6.12.0-211.26.1.el10_2, kernel-rt-modules-core 6.12.0-211.26.1.el10_2, kernel-rt-debug-modules 6.12.0-211.26.1.el10_2, +4 morefixed: vendor fix RHSA-2026:27288
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Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-kvm 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-core 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-modules 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-debug-kvm 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-debug-core 5.14.0-284.191.1.rt14.476.el9_2, +6 morefixed: vendor fix RHSA-2026:67721
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Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) kernel-rt 5.14.0-427.149.1.el9_4, kernel-rt-kvm 5.14.0-427.149.1.el9_4, kernel-rt-core 5.14.0-427.149.1.el9_4, kernel-rt-modules 5.14.0-427.149.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.149.1.el9_4, kernel-rt-debug-core 5.14.0-427.149.1.el9_4, +6 morefixed: vendor fix RHSA-2026:65712
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Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt 6.12.0-55.103.1.el10_0, kernel-rt-kvm 6.12.0-55.103.1.el10_0, kernel-rt-core 6.12.0-55.103.1.el10_0, kernel-rt-modules 6.12.0-55.103.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.103.1.el10_0, kernel-rt-debug-core 6.12.0-55.103.1.el10_0, +6 morefixed: vendor fix RHSA-2026:64767
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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 morefixed: vendor fix RHSA-2026:62568
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Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.134.1.rt7.475.el8_10, kernel-rt-core 4.18.0-553.134.1.rt7.475.el8_10, kernel-rt-modules 4.18.0-553.134.1.rt7.475.el8_10, kernel-rt-debug-core 4.18.0-553.134.1.rt7.475.el8_10, kernel-rt-debug-modules 4.18.0-553.134.1.rt7.475.el8_10, kernel-rt-modules-extra 4.18.0-553.134.1.rt7.475.el8_10, +2 morefixed: vendor fix RHSA-2026:26428
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Red Hat Enterprise Linux Server (v. 7 ELS) perf 3.10.0-1160.169.1.el7, kernel 3.10.0-1160.169.1.el7, bpftool 3.10.0-1160.169.1.el7, python-perf 3.10.0-1160.169.1.el7, kernel-kdump 3.10.0-1160.169.1.el7, kernel-tools 3.10.0-1160.169.1.el7, +7 morefixed: vendor fix RHSA-2026:95556
1 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-26-295-16 updated cvss 8.8
Siemens SIMATIC S7-1500 TM MFP
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Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystemaffected: 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
- 23 d ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:A/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-416 Use After Free
- Technology feeds
References
- git.kernel.org /stable/c/ea18732d2614557e59f4c0d8cdbe6611aeab33b7
- git.kernel.org /stable/c/d28311539ac9f65e29308ea219ecaa48aa5e76e5
-
git.kernel.org
/stable/c/b6ae482f88654db407c8c17619d4b62959b903ef
patch
-
git.kernel.org
/stable/c/204028af77a265e31ceb4ba7f643349a3cca72b2
patch
-
git.kernel.org
/stable/c/01a6431766c35dfedb86e0cb5d3fc80c6d604a47
patch
-
git.kernel.org
/stable/c/e08d75753db17aa943d7622f09d9c217b5bfd3b8
patch
-
git.kernel.org
/stable/c/8c6443bb9257b780986fb67ec08565bf48ecb8d7
patch
-
git.kernel.org
/stable/c/85fa3512048793076eef658f66489112dcc91993
patch
- cert-portal.siemens.com /productcert/html/ssa-784472.html
Sources
- CVE List CVE-2026-46056
- NVD CVE-2026-46056
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.