CVE-2023-5178

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2023-11-01. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 9%CVSS: 8.8Exploit: NoneExposed: 0

A fix is available — apply it.

A use-after-free vulnerability was found in drivers/nvme/target/tcp.c in nvmet_tcp_free_crypto` due to a logical bug in the NVMe/TCP subsystem in the Linux kernel. This issue may allow a malicious user to cause a use-after-free and double-free problem, which may permit remote code execution or lead to local privilege escalation.

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
94.7%
KEV
Not listed

Published

November 1, 2023

Last Modified

June 17, 2026

References (50)

Vendor Advisories for CVE-2023-5178(4)

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

Patch Availability(23)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-gcp (6.2.0.1021.23~22.04.1) @ jammy2026-05-24ubuntu
ubuntulinux-tools-gcp (6.5.0.1010.10) @ mantic2026-05-24ubuntu
ubuntulinux-tools-oem-22.04c (6.1.0.1026.27) @ jammy2026-05-24ubuntu
ubuntulinux-tools-kvm (6.2.0.1018.18) @ lunar2026-05-24ubuntu
ubuntulinux-tools-gkeop-edge (5.15.0.1034.40~20.04.30) @ focal2026-05-24ubuntu
ubuntulinux-virtual-hwe-22.04 (6.2.0.39.40~22.04.16) @ jammy2026-05-24ubuntu
ubuntulinux-tools-azure-fde (6.2.0.1018.18~22.04.1.15) @ jammy2026-05-24ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.91.88) @ jammy2026-05-24ubuntu
ubuntulinux-virtual-hwe-18.04-edge (5.4.0.169.187~18.04.137) @ bionic2026-05-24ubuntu
redhatkernel-rt-0:4.18.0-193.128.1.rt13.179.el8_22024-03-12redhat
redhatkpatch-patch2024-03-12redhat
redhatkernel-0:4.18.0-193.128.1.el8_22024-03-12redhat
redhatkernel-0:4.18.0-477.43.1.el8_82024-01-30redhat
redhatkernel-0:5.14.0-362.18.1.el9_32024-01-25redhat
redhatkernel-0:5.14.0-70.85.1.el9_02024-01-25redhat
redhatkernel-rt-0:5.14.0-70.85.1.rt21.156.el9_02024-01-25redhat
redhatkernel-0:4.18.0-372.87.1.el8_62024-01-25redhat
redhatkernel-0:4.18.0-305.114.1.el8_42023-11-28redhat
redhatkernel-rt-0:4.18.0-513.9.1.rt7.311.el8_92023-11-28redhat
redhatkernel-0:4.18.0-513.9.1.el8_92023-11-28redhat
redhatkernel-rt-0:4.18.0-305.114.1.rt7.190.el8_42023-11-28redhat
redhatkernel-0:5.14.0-284.40.1.el9_22023-11-21redhat
redhatkernel-rt-0:5.14.0-284.40.1.rt14.325.el9_22023-11-21redhat

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(2)

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

Additional Vendor Advisories

(21)

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 / 36× 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.

  1. 2026-07-11 08:26 UTCEPSS rescore
  2. 2026-07-09 19:08 UTCEPSS rescore
  3. 2026-07-08 15:13 UTCEPSS rescore
  4. 2026-07-07 13:45 UTCEPSS rescore
  5. 2026-07-07 13:44 UTCEPSS rescore
  6. 2026-07-06 16:26 UTCEPSS rescore
  7. 2026-07-06 16:26 UTCEPSS rescore
  8. 2026-07-06 02:22 UTCEPSS rescore
  9. 2026-07-06 02:22 UTCEPSS rescore
  10. 2026-07-05 02:29 UTCEPSS rescore
  11. 2026-07-04 06:29 UTCEPSS rescore
  12. 2026-07-01 15:05 UTCEPSS rescore
  13. 2026-06-30 23:21 UTCEPSS rescore
  14. 2026-06-30 23:21 UTCEPSS rescore
  15. 2026-06-29 14:05 UTCEPSS rescore
  16. 2026-06-28 14:06 UTCEPSS rescore
  17. 2026-06-28 14:06 UTCEPSS rescore
  18. 2026-06-28 04:55 UTCEPSS rescore
  19. 2026-06-27 06:04 UTCOSV refresh
  20. 2026-06-27 03:07 UTCEPSS rescore
  21. 2026-06-25 13:48 UTCEPSS rescore
  22. 2026-06-25 13:48 UTCEPSS rescore
  23. 2026-06-24 14:04 UTCEPSS rescore
  24. 2026-06-24 14:04 UTCEPSS rescore
  25. 2026-06-23 21:31 UTCEPSS rescore
Show 46 more
  1. 2026-06-23 21:31 UTCEPSS rescore
  2. 2026-06-21 14:55 UTCEPSS rescore
  3. 2026-06-21 14:55 UTCEPSS rescore
  4. 2026-06-18 17:51 UTCEPSS rescore
  5. 2026-06-17 17:51 UTCEPSS rescore
  6. 2026-06-16 17:51 UTCEPSS rescore
  7. 2026-06-16 17:51 UTCEPSS rescore
  8. 2026-06-15 17:47 UTCEPSS rescore
  9. 2026-06-13 22:59 UTCEPSS rescore
  10. 2026-06-13 22:59 UTCEPSS rescore
  11. 2026-06-12 23:11 UTCEPSS rescore
  12. 2026-06-11 13:59 UTCEPSS rescore
  13. 2026-06-10 22:17 UTCEPSS rescore
  14. 2026-06-10 13:21 UTCEPSS rescore
  15. 2026-06-09 16:17 UTCOSV refresh
  16. 2026-06-08 14:16 UTCEPSS rescore
  17. 2026-06-08 14:16 UTCEPSS rescore
  18. 2026-06-07 15:24 UTCEPSS rescore
  19. 2026-06-07 15:24 UTCEPSS rescore
  20. 2026-06-06 13:46 UTCEPSS rescore
  21. 2026-06-06 13:46 UTCEPSS rescore
  22. 2026-06-05 22:46 UTCEPSS rescore
  23. 2026-06-05 22:46 UTCEPSS rescore
  24. 2026-06-05 06:09 UTCEPSS rescore
  25. 2026-06-05 06:09 UTCEPSS rescore
  26. 2026-06-04 13:11 UTCEPSS rescore
  27. 2026-06-04 13:11 UTCEPSS rescore
  28. 2026-06-02 20:12 UTCEPSS rescore
  29. 2026-06-02 20:12 UTCEPSS rescore
  30. 2026-06-01 13:51 UTCEPSS rescore
  31. 2026-05-31 22:30 UTCEPSS rescore
  32. 2026-05-31 22:30 UTCEPSS rescore
  33. 2026-05-31 00:15 UTCEPSS rescore
  34. 2026-05-31 00:15 UTCEPSS rescore
  35. 2026-05-29 13:43 UTCEPSS rescore
  36. 2026-05-28 13:44 UTCEPSS rescore
  37. 2026-05-28 13:44 UTCEPSS rescore
  38. 2026-05-27 13:40 UTCEPSS rescore
  39. 2026-05-27 13:39 UTCEPSS rescore
  40. 2026-05-26 13:43 UTCEPSS rescore
  41. 2026-05-26 13:43 UTCEPSS rescore
  42. 2026-05-26 07:18 UTCEPSS rescore
  43. 2026-05-26 07:18 UTCEPSS rescore
  44. 2026-05-24 14:40 UTCEG score recompute
  45. 2026-05-24 14:40 UTCVendor advisory
  46. 2026-05-24 14:40 UTCGHSA enrichment

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCrockrid3r/CVE-2023-5178
    First seen Feb 5, 2024

    Exploit for CVE-2023-5178

    Open source ↗

Frequently asked(5)

What is CVE-2023-5178?
CVE-2023-5178 is a high vulnerability published on November 1, 2023. A use-after-free vulnerability was found in drivers/nvme/target/tcp.c in nvmettcpfree_crypto` due to a logical bug in the NVMe/TCP subsystem in the Linux kernel. This issue may allow a malicious user to cause a use-after-free and double-free problem, which may permit remote code execution or lead…
When was CVE-2023-5178 disclosed?
CVE-2023-5178 was first published in the National Vulnerability Database on November 1, 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-2023-5178 actively exploited?
CVE-2023-5178 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-5178?
CVE-2023-5178 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2023-5178?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-5178, 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

Explore the affected products and dependency analysis for CVE-2023-5178

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