CVE-2024-26643

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2024-03-21. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: NoneExposed: 0

A fix is available — apply it.

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

netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout

While the rhashtable set gc runs asynchronously, a race allows it to collect elements from anonymous sets with timeouts while it is being released from the commit path.

Mingi Cho originally reported this issue in a different path in 6.1.x with a pipapo set with low timeouts which is not possible upstream since 7395dfacfff6 ("netfilter: nf_tables: use timestamp to check for set element timeout").

Fix this by setting on the dead flag for anonymous sets to skip async gc in this case.

According to 08e4c8c5919f ("netfilter: nf_tables: mark newset as dead on transaction abort"), Florian plans to accelerate abort path by releasing objects via workqueue, therefore, this sets on the dead flag for abort path too.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
—
EPSS
9.5%
KEV
Not listed

Published

March 21, 2024

Last Modified

May 12, 2026

References (18)

Vendor Advisories for CVE-2024-26643(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(22)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-nvidia-hwe-22.04-edge (6.5.0.1022.30) @ jammy2026-05-22ubuntu
ubuntulinux-tools-starfive (6.5.0.1016.18) @ mantic2026-05-22ubuntu
ubuntulinux-tools-azure (6.5.0.1023.27) @ mantic2026-05-22ubuntu
ubuntulinux-tools-lowlatency-hwe-22.04-edge (6.5.0.42.42.1) @ mantic2026-05-22ubuntu
ubuntulinux-tools-starfive (6.5.0.1016.17~22.04.1) @ jammy2026-05-22ubuntu
ubuntulinux-tools-aws-edge (5.15.0.1064.70~20.04.1) @ focal2026-05-22ubuntu
ubuntulinux-tools-aws-edge (5.4.0.1127.137~18.04.1) @ bionic2026-05-22ubuntu
ubuntulinux-virtual-hwe-18.04-edge (5.4.0.189.187) @ focal2026-05-22ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1057.60~20.04.1) @ focal2026-05-22ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1065.73~20.04.1) @ focal2026-05-22ubuntu
ubuntulinux-virtual-hwe-22.04 (6.5.0.44.44~22.04.1) @ jammy2026-05-22ubuntu
ubuntulinux-tools-raspi-nolpae (5.15.0.1058.56) @ jammy2026-05-22ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.4.0-1046 (5.4.0-1046.50) @ focal2026-05-22ubuntu
ubuntulinux-xilinx-zynqmp-tools-host (5.15.0-1031.35) @ jammy2026-05-22ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.113.123~20.04.1) @ focal2026-05-22ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1062.58) @ jammy2026-05-22ubuntu
redhatkernel-0:4.18.0-553.5.1.el8_102024-06-05redhat
redhatkernel-rt-0:4.18.0-553.5.1.rt7.346.el8_102024-06-05redhat
redhatkernel-0:5.14.0-284.67.1.el9_22024-05-29redhat
redhatkernel-rt-0:5.14.0-284.67.1.rt14.352.el9_22024-05-29redhat
redhatkernel-0:5.14.0-427.18.1.el9_42024-05-23redhat
linuxKernel @ 5.4.274—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(20)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 10× in last 7d / 46× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 123 total refreshes for this CVE.

  1. 2026-07-22 14:07 UTCEPSS rescore
  2. 2026-07-21 15:23 UTCEPSS rescore
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  19. 2026-07-11 08:52 UTCOSV refresh
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  1. 2026-07-06 16:26 UTCEPSS rescore
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  9. 2026-06-29 14:05 UTCEPSS rescore
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  22. 2026-06-22 15:31 UTCOSV refresh
  23. 2026-06-22 14:24 UTCEPSS rescore
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  25. 2026-06-21 14:55 UTCEPSS rescore
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  27. 2026-06-21 01:58 UTCEPSS rescore
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  50. 2026-06-05 22:46 UTCEPSS rescore
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  52. 2026-06-05 02:09 UTCOSV refresh
  53. 2026-06-04 13:11 UTCEPSS rescore
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  74. 2026-05-22 21:16 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2024-26643?
CVE-2024-26643 is a medium vulnerability published on March 21, 2024. In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout While the rhashtable set gc runs asynchronously, a race allows it to collect elements from anonymous sets with timeouts while it is being released…
When was CVE-2024-26643 disclosed?
CVE-2024-26643 was first published in the National Vulnerability Database on March 21, 2024, with the most recent update on May 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-26643 actively exploited?
CVE-2024-26643 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2024-26643?
CVE-2024-26643 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2024-26643?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-26643, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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