CVE-2023-42754

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2023-10-05. 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.

A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
33.2%
KEV
Not listed

Published

October 5, 2023

Last Modified

June 17, 2026

References (16)

Vendor Advisories for CVE-2023-42754(2)

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

Patch Availability(24)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-gke (4.15.0.1157.147) @ xenial2026-05-24ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.5.0.14.16) @ mantic2026-05-24ubuntu
ubuntulinux-tools-gcp (6.5.0.1010.10) @ mantic2026-05-24ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.2.0.39.39) @ lunar2026-05-24ubuntu
ubuntulinux-virtual-lts-xenial (4.4.0.248.254) @ xenial2026-05-24ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.91.88) @ jammy2026-05-24ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.4.0-1035 (5.4.0-1035.39) @ focal2026-05-24ubuntu
ubuntulinux-tools-gkeop-5.15 (5.15.0.1034.33) @ jammy2026-05-24ubuntu
ubuntulinux-tools-kvm (6.2.0.1018.18) @ lunar2026-05-24ubuntu
ubuntulinux-tools-raspi2-hwe-18.04-edge (5.4.0.1100.130) @ focal2026-05-24ubuntu
ubuntulinux-virtual-hwe-22.04 (6.2.0.39.40~22.04.16) @ jammy2026-05-24ubuntu
ubuntulinux-tools-oracle-lts-20.04 (5.4.0.1115.108) @ focal2026-05-24ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (5.15.0.91.92) @ jammy2026-05-24ubuntu
ubuntulinux-tools-iot (5.4.0.1028.26) @ focal2026-05-24ubuntu
ubuntulinux-tools-intel-iotg (5.15.0.1046.46) @ jammy2026-05-24ubuntu
ubuntulinux-tools-azure (6.5.0.1010.12) @ mantic2026-05-24ubuntu
ubuntulinux-tools-gcp (6.2.0.1021.23~22.04.1) @ jammy2026-05-24ubuntu
ubuntulinux-tools-intel-iotg-edge (5.15.0.1046.52~20.04.36) @ focal2026-05-24ubuntu
ubuntulinux-tools-gkeop-5.4 (5.4.0.1083.81) @ focal2026-05-24ubuntu
ubuntulinux-tools-oem-22.04c (6.1.0.1025.26) @ jammy2026-05-24ubuntu
ubuntulinux-virtual-hwe-16.04-edge (4.15.0.220.4) @ xenial2026-05-24ubuntu
redhatkernel-rt-0:4.18.0-553.rt7.342.el8_102024-05-22redhat
redhatkernel-0:4.18.0-553.el8_102024-05-22redhat
redhatkernel-0:5.14.0-427.13.1.el9_42024-04-30redhat

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

(23)

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 12× in last 7d / 49× 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 101 total refreshes for this CVE.

  1. 2026-07-23 02:26 UTCEG score recompute
  2. 2026-07-22 23:13 UTCEG score recompute
  3. 2026-07-22 14:06 UTCEPSS rescore
  4. 2026-07-21 15:23 UTCEPSS rescore
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  11. 2026-07-16 17:01 UTCEPSS rescore
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  13. 2026-07-15 16:56 UTCEPSS rescore
  14. 2026-07-15 16:56 UTCEPSS rescore
  15. 2026-07-15 08:19 UTCOSV refresh
  16. 2026-07-15 01:58 UTCEPSS rescore
  17. 2026-07-13 22:28 UTCEPSS rescore
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  23. 2026-07-11 08:26 UTCEPSS rescore
  24. 2026-07-11 08:26 UTCEPSS rescore
  25. 2026-07-09 19:08 UTCEPSS rescore
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  1. 2026-07-08 15:13 UTCEPSS rescore
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  5. 2026-07-06 02:22 UTCEPSS rescore
  6. 2026-07-05 02:29 UTCEPSS rescore
  7. 2026-07-04 06:29 UTCEPSS rescore
  8. 2026-07-01 15:05 UTCEPSS rescore
  9. 2026-06-30 23:21 UTCEPSS rescore
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  11. 2026-06-29 14:05 UTCEPSS rescore
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  14. 2026-06-28 04:55 UTCEPSS rescore
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  16. 2026-06-27 08:34 UTCOSV refresh
  17. 2026-06-27 03:07 UTCEPSS rescore
  18. 2026-06-27 03:07 UTCEPSS rescore
  19. 2026-06-25 13:48 UTCEPSS rescore
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  21. 2026-06-24 14:04 UTCEPSS rescore
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  23. 2026-06-23 21:31 UTCEPSS rescore
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  25. 2026-06-22 14:24 UTCEPSS rescore
  26. 2026-06-22 14:24 UTCEPSS rescore
  27. 2026-06-21 14:55 UTCEPSS rescore
  28. 2026-06-21 14:55 UTCEPSS rescore
  29. 2026-06-21 01:58 UTCEPSS rescore
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  31. 2026-06-19 19:24 UTCEPSS rescore
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  40. 2026-06-14 23:16 UTCEPSS rescore
  41. 2026-06-13 22:59 UTCEPSS rescore
  42. 2026-06-13 22:59 UTCEPSS rescore
  43. 2026-06-12 23:10 UTCEPSS rescore
  44. 2026-06-12 23:10 UTCEPSS rescore
  45. 2026-06-10 22:17 UTCEPSS rescore
  46. 2026-06-10 13:21 UTCEPSS rescore
  47. 2026-06-10 13:21 UTCEPSS rescore
  48. 2026-06-09 19:17 UTCOSV refresh
  49. 2026-06-08 14:16 UTCEPSS rescore
  50. 2026-06-08 14:16 UTCEPSS rescore
  51. 2026-06-07 15:23 UTCEPSS rescore
  52. 2026-06-07 15:23 UTCEPSS rescore
  53. 2026-06-05 22:46 UTCEPSS rescore
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  55. 2026-06-04 13:11 UTCEPSS rescore
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  57. 2026-06-02 20:12 UTCEPSS rescore
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  59. 2026-06-01 13:51 UTCEPSS rescore
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  61. 2026-05-31 22:30 UTCEPSS rescore
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  63. 2026-05-29 13:43 UTCEPSS rescore
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  65. 2026-05-28 13:44 UTCEPSS rescore
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  67. 2026-05-27 13:39 UTCEPSS rescore
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  69. 2026-05-26 13:43 UTCEPSS rescore
  70. 2026-05-26 13:43 UTCEPSS rescore
  71. 2026-05-26 07:18 UTCEPSS rescore
  72. 2026-05-26 07:18 UTCEPSS rescore
  73. 2026-05-26 07:18 UTCEPSS rescore
  74. 2026-05-24 16:27 UTCEG score recompute
  75. 2026-05-24 16:27 UTCVendor advisory

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2023-42754?
CVE-2023-42754 is a medium vulnerability published on October 5, 2023. A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling ipoptionscompile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAPNETADMIN privileges…
When was CVE-2023-42754 disclosed?
CVE-2023-42754 was first published in the National Vulnerability Database on October 5, 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-2023-42754 actively exploited?
CVE-2023-42754 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 33.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-42754?
CVE-2023-42754 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2023-42754?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-42754, 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

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