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CVE-2026-46333

HIGH 7.1 ALL-YEARS

Published 2026-05-15 · Last modified 2026-10-15 · Linux · NVD: Modified

In the Linux kernel, the following vulnerability has been resolved: ptrace: slightly saner 'get_dumpable()' logic The 'dumpability' of a task is fundamentally about the memory image of the task - the concept comes from whether it can core dump or not - and makes no sense when you don't have an associated mm. And almost all users do in fact use it only for the case where the task has a mm pointer. But we have one odd special case: ptrace_may_access() uses 'dumpable' to check various other things entirely independently of the MM (typically explicitly using flags like PTRACE_MODE_READ_FSCREDS). Including for threads that no longer have a VM (and maybe never did, like most kernel threads). It's not what this flag was designed for, but it is what it is. The ptrace code does check that the uid/gid matches, so you do have to be uid-0 to see kernel thread details, but this means that the traditional "drop capabilities" model doesn't make any difference for this all. Make it all make a *bit* more sense by saying that if you don't have a MM pointer, we'll use a cached "last dumpability" flag if the thread ever had a MM (it will be zero for kernel threads since it is never set), and require a proper CAP_SYS_PTRACE capability to override.

ELEVATED IMPACT

Severe if exploited (CVSS 7.1), but no confirmed exploitation. Patch on a normal cadence.

Exploitation likelihood

4.3%chance of exploitation in 30 days · 91st percentile

○ In CISA KEV○ Catalogued PoC◆ SSVC: exploitation poc, automatable no

Impact if exploited

7.1CVSS 3.1 · HIGH · CNA

  • ConfidentialityHigh
  • IntegrityHigh
  • AvailabilityNone

What an attacker needs

  • ⚠Access: Requires local access to the host
  • ⚠Privileges: Requires a low-privilege account
  • ✓User interaction: No user interaction needed
  • ✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Data snapshot:

Affected

Vendors Linux Red Hat Siemens Debian

Products Linux Nvidia For Rhel 10 Red Hat Enterprise Linux 10 Red Hat Enterprise Linux 10.0 Extended Update Support Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.4 Extended Update Support Long Life Add On Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.6 Telecommunications Update Service Red Hat Enterprise Linux 8.6 Update Services For Sap Solutions Red Hat Enterprise Linux 8.8 Telecommunications Update Service Red Hat Enterprise Linux 8.8 Update Services For Sap Solutions Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 9.0 Update Services For Sap Solutions Red Hat Enterprise Linux 9.2 Update Services For Sap Solutions Red Hat Enterprise Linux 9.4 Extended Update Support Red Hat Enterprise Linux 9.4 Update Services For Sap Solutions Red Hat Enterprise Linux 9.6 Extended Update Support Red Hat Openshift Container Platform 4.20 Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 7 Red Hat Openshift Container Platform 4 Simatic S7 1500 Cpu 1518 4 Pn/Dp Mfp Simatic S7 1500 Cpu 1518f 4 Pn/Dp Mfp Siplus S7 1500 Cpu 1518 4 Pn/Dp Mfp Linux Kernel Debian Linux

Weakness (CWE)

  • CWE-269: Improper Privilege Management

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References and research data (JSON)

Vendor product assessments

Showing 32 of 2903 vendor product statements; 2871 omitted. Read the full vendor advisory.

  • kernel-0:6.12.0-211.8.el10nv.aarch64 as a component of NVIDIA for RHEL 10 · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]?arch=aarch64

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    • workaround: See the security bulletin for a detailed mitigation procedure.
    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-debug-modules-extra-0:5.14.0-570.117.1.el9_6.ppc64le as a component of Red Hat OpenShift Container Platform 4.20 · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_6?arch=ppc64le

    • vendor fix: For OpenShift Container Platform 4.20 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.redhat.com/en/documentation/openshift_container_platform/4.20/html/release_notes/ Vendor guidance
    • workaround: See the security bulletin for a detailed mitigation procedure.
    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • perf-0:5.14.0-570.117.1.el9_6.x86_64 as a component of Red Hat OpenShift Container Platform 4.20 · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_6?arch=x86_64

    • vendor fix: For OpenShift Container Platform 4.20 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.redhat.com/en/documentation/openshift_container_platform/4.20/html/release_notes/ Vendor guidance
    • workaround: See the security bulletin for a detailed mitigation procedure.
    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-debug-devel-matched-0:5.14.0-70.180.1.el9_0.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_0?arch=s390x

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    • workaround: See the security bulletin for a detailed mitigation procedure.
    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-debug-devel-matched-0:5.14.0-570.116.1.el9_6.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_6?arch=s390x

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    • workaround: See the security bulletin for a detailed mitigation procedure.
    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-modules-0:6.12.0-55.75.1.el10_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 10.0) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_0?arch=aarch64

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    • workaround: See the security bulletin for a detailed mitigation procedure.
    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-debug-devel-0:4.18.0-553.125.1.el8_10.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_10?arch=aarch64

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    • workaround: See the security bulletin for a detailed mitigation procedure.
    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-core-0:4.18.0-372.193.1.el8_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.6) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_6?arch=aarch64

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    • workaround: See the security bulletin for a detailed mitigation procedure.
    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-0:4.18.0-477.143.1.el8_8.src as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_8?arch=src

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    • workaround: See the security bulletin for a detailed mitigation procedure.
    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-tools-libs-0:5.14.0-284.172.1.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_2?arch=x86_64

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    • workaround: See the security bulletin for a detailed mitigation procedure.
    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • perf-debuginfo-0:5.14.0-427.126.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_4?arch=aarch64

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    • workaround: See the security bulletin for a detailed mitigation procedure.
    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-debuginfo-0:5.14.0-687.10.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_8?arch=aarch64

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    • workaround: See the security bulletin for a detailed mitigation procedure.
    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-rt-debuginfo-0:5.14.0-427.126.1.el9_4.x86_64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_4?arch=x86_64

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    • workaround: See the security bulletin for a detailed mitigation procedure.
    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-rt-core-0:5.14.0-284.172.1.rt14.457.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_2?arch=x86_64

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    • workaround: See the security bulletin for a detailed mitigation procedure.
    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-rt-modules-extra-0:6.12.0-211.16.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux Real Time (v. 10) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_2?arch=aarch64

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    • workaround: See the security bulletin for a detailed mitigation procedure.
    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • python3-perf-debuginfo-0:5.14.0-687.10.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 9) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_8?arch=x86_64

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    • workaround: See the security bulletin for a detailed mitigation procedure.
    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4 · known affected

    Vendor assessment for this product only.

    pkg:oci/ose-rhel-coreos-8?repository_url=registry.redhat.io/openshift/ose-rhel-coreos-8

    • workaround: See the security bulletin for a detailed mitigation procedure.
    • none available: Fix deferred
    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel as a component of Red Hat Enterprise Linux 6 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel

    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-debug as a component of Red Hat Enterprise Linux 6 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-debug

    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-doc as a component of Red Hat Enterprise Linux 6 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-doc

    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-kdump as a component of Red Hat Enterprise Linux 6 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-kdump

    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • perf as a component of Red Hat Enterprise Linux 6 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/perf

    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel

    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-debug as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-debug

    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-devel as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-devel

    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-kdump as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-kdump

    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-rt-debug as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-rt-debug

    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-rt-devel as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-rt-devel

    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-rt-trace as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-rt-trace

    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-rt.src as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-rt?arch=src

    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • kernel-tools-libs-devel as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-tools-libs-devel

    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00
  • python-perf as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/python-perf

    Red Hat · CVE-2026-46333 · Updated 2026-10-09T01:05:13+00:00

Unverified PoC candidates

Catalogue matches for further research. These repositories have not been validated as working exploits.

5 candidates

Known Affected Software Configurations

VendorProductVersion range
LinuxLinux Kernel≥ 3.16.52 and < 3.17
LinuxLinux Kernel≥ 4.4.40 and < 4.5
LinuxLinux Kernel≥ 4.8.16 and < 4.9
LinuxLinux Kernel≥ 4.9.1 and < 5.10.256
LinuxLinux Kernel≥ 5.11 and < 5.15.207
LinuxLinux Kernel≥ 5.16 and < 6.1.173
LinuxLinux Kernel≥ 6.2 and < 6.6.139
LinuxLinux Kernel≥ 6.7 and < 6.12.89
LinuxLinux Kernel≥ 6.13 and < 6.18.31
LinuxLinux Kernel≥ 6.19 and < 7.0.8
LinuxLinux Kernel7.1
LinuxLinux Kernel7.1
LinuxLinux Kernel7.1
DebianDebian Linux11.0

All CVSS metrics

  • HIGH 7.1 v3.1 · CNA Primary
    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  • HIGH 7.8 v3.1 · ADP Primary
    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • HIGH 7.1 v3.1 · NVD Secondary
    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  • HIGH 7.8 v3.1 · NVD Secondary
    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Exploit-tagged references (not proof of a PoC)

Patches & mitigations

Advisories

Technical & other

Sources: NVD · CVE.org · All sources and attribution · EPSS