CVE-2023-4569

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2023-08-29. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

A memory leak flaw was found in nft_set_catchall_flush in net/netfilter/nf_tables_api.c in the Linux Kernel. This issue may allow a local attacker to cause double-deactivations of catchall elements, which can result in a memory leak.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
25(Track)
EG Risk 25/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

August 28, 2023

Last Modified

June 17, 2026

References (8)

Patch Availability(9)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-22.04-edge (6.2.0.33.33) @ lunar2026-05-24ubuntu
ubuntulinux-tools-oem-22.04c (6.1.0.1022.22) @ jammy2026-05-24ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.84.81) @ jammy2026-05-24ubuntu
ubuntulowlatency-4.4 (4.4.0-168) @ xenial2026-05-24ubuntu
ubuntulinux-tools-raspi-nolpae (5.15.0.1038.36) @ jammy2026-05-24ubuntu
ubuntulinux-tools-oem-22.04b (6.0.0.1021.21) @ jammy2026-05-24ubuntu
ubuntulinux-tools-nvidia-hwe-22.04-edge (6.2.0.1011.13) @ jammy2026-05-24ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1044.50~20.04.1) @ focal2026-05-24ubuntu
ubuntuibm (5.15.0-1000) @ jammy2026-05-24ubuntu

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.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 7.2~rc5-1~exp1 (499 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.27-1 ... 6.1.38-4~bpo11+1 (8 versions)6.1.52-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—6.4.13-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—6.4.13-1—

Weakness Classification(2)

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

All Vendor Advisories

(10)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 10× in last 7d / 34× 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 161 total refreshes for this CVE.

  1. 2026-09-07 15:59 UTCEPSS rescore
  2. 2026-09-06 13:46 UTCEPSS rescore
  3. 2026-09-06 13:45 UTCEPSS rescore
  4. 2026-09-05 15:26 UTCEPSS rescore
  5. 2026-09-04 13:58 UTCEPSS rescore
  6. 2026-09-04 05:04 UTCEPSS rescore
  7. 2026-09-03 19:46 UTCOSV refresh
  8. 2026-09-02 14:10 UTCEPSS rescore
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  10. 2026-09-01 13:51 UTCEPSS rescore
  11. 2026-09-01 04:35 UTCEPSS rescore
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  20. 2026-08-20 22:53 UTCEPSS rescore
  21. 2026-08-19 17:02 UTCEPSS rescore
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  23. 2026-08-18 13:46 UTCEPSS rescore
  24. 2026-08-17 13:45 UTCEPSS rescore
  25. 2026-08-17 09:06 UTCOSV refresh
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  1. 2026-08-16 14:54 UTCEPSS rescore
  2. 2026-08-16 02:12 UTCEPSS rescore
  3. 2026-08-15 01:28 UTCEPSS rescore
  4. 2026-08-13 21:58 UTCEPSS rescore
  5. 2026-08-12 13:49 UTCEPSS rescore
  6. 2026-08-11 13:40 UTCEPSS rescore
  7. 2026-08-10 23:57 UTCEPSS rescore
  8. 2026-08-09 13:44 UTCEPSS rescore
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  10. 2026-08-08 16:35 UTCEPSS rescore
  11. 2026-08-07 16:25 UTCEPSS rescore
  12. 2026-08-06 13:45 UTCEPSS rescore
  13. 2026-08-05 19:15 UTCEPSS rescore
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  17. 2026-08-03 10:34 UTCEPSS rescore
  18. 2026-08-02 03:41 UTCOSV refresh
  19. 2026-08-02 02:25 UTCEPSS rescore
  20. 2026-08-02 02:25 UTCEPSS rescore
  21. 2026-08-01 04:14 UTCEPSS rescore
  22. 2026-07-30 16:26 UTCEPSS rescore
  23. 2026-07-30 16:26 UTCEPSS rescore
  24. 2026-07-30 01:28 UTCEPSS rescore
  25. 2026-07-28 15:34 UTCEPSS rescore
  26. 2026-07-28 15:34 UTCEPSS rescore
  27. 2026-07-27 14:10 UTCEPSS rescore
  28. 2026-07-26 14:52 UTCEPSS rescore
  29. 2026-07-25 14:16 UTCEPSS rescore
  30. 2026-07-24 14:16 UTCEPSS rescore
  31. 2026-07-24 14:16 UTCEPSS rescore
  32. 2026-07-23 14:16 UTCEPSS rescore
  33. 2026-07-23 02:27 UTCEG score recompute
  34. 2026-07-22 23:13 UTCEG score recompute
  35. 2026-07-22 14:06 UTCEPSS rescore
  36. 2026-07-21 15:23 UTCEPSS rescore
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  38. 2026-07-20 17:06 UTCEPSS rescore
  39. 2026-07-19 14:29 UTCEPSS rescore
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  41. 2026-07-18 10:03 UTCEPSS rescore
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  43. 2026-07-16 17:01 UTCEPSS rescore
  44. 2026-07-15 16:56 UTCEPSS rescore
  45. 2026-07-15 16:56 UTCEPSS rescore
  46. 2026-07-15 11:19 UTCOSV refresh
  47. 2026-07-15 01:59 UTCEPSS rescore
  48. 2026-07-15 01:59 UTCEPSS rescore
  49. 2026-07-13 22:28 UTCEPSS rescore
  50. 2026-07-13 22:28 UTCEPSS rescore
  51. 2026-07-13 06:11 UTCEPSS rescore
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  53. 2026-07-12 05:45 UTCEPSS rescore
  54. 2026-07-11 08:26 UTCEPSS rescore
  55. 2026-07-09 19:08 UTCEPSS rescore
  56. 2026-07-08 15:13 UTCEPSS rescore
  57. 2026-07-07 13:44 UTCEPSS rescore
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  59. 2026-07-06 16:26 UTCEPSS rescore
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  65. 2026-07-02 16:59 UTCEPSS rescore
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  67. 2026-06-30 23:21 UTCEPSS rescore
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  69. 2026-06-29 14:05 UTCEPSS rescore
  70. 2026-06-28 14:06 UTCEPSS rescore
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  72. 2026-06-28 04:55 UTCEPSS rescore
  73. 2026-06-27 11:34 UTCOSV refresh
  74. 2026-06-27 03:07 UTCEPSS rescore
  75. 2026-06-25 13:48 UTCEPSS rescore

Frequently asked(5)

What is CVE-2023-4569?
CVE-2023-4569 is a medium vulnerability published on August 28, 2023. A memory leak flaw was found in nftsetcatchallflush in net/netfilter/nftables_api.c in the Linux Kernel. This issue may allow a local attacker to cause double-deactivations of catchall elements, which can result in a memory leak.
When was CVE-2023-4569 disclosed?
CVE-2023-4569 was first published in the National Vulnerability Database on August 28, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-4569 actively exploited?
CVE-2023-4569 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 79.5% of all scored CVEs.
What is the CVSS score of CVE-2023-4569?
CVE-2023-4569 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2023-4569?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-4569, 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.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-4569

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