CVE-2024-39321

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 61% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

Traefik is an HTTP reverse proxy and load balancer. Versions prior to 2.11.6, 3.0.4, and 3.1.0-rc3 have a vulnerability that allows bypassing IP allow-lists via HTTP/3 early data requests in QUIC 0-RTT handshakes sent with spoofed IP addresses. Versions 2.11.6, 3.0.4, and 3.1.0-rc3 contain a patch for this issue. No known workarounds are available.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
44.4%
KEV
Not listed

Published

July 5, 2024

Last Modified

November 25, 2025

References (8)

Vendor Advisories for CVE-2024-39321(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatdevspaces/traefik-rhel9:sha256:f17428eced9d6bec1eaaa1510b68250824d3ace2f66af7f31fbf7327ca11540c2025-09-15redhat

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

(3 across 1 ecosystem)
Go(3)
PackageVulnerable rangeFixed inDependents
github.com/traefik/traefik———
github.com/traefik/traefik/v2—2.11.6—
github.com/traefik/traefik/v3—3.1.0-rc3—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 47× 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. 2026-07-16 17:02 UTCEPSS rescore
  2. 2026-07-15 16:56 UTCEPSS rescore
  3. 2026-07-15 16:56 UTCEPSS rescore
  4. 2026-07-15 01:59 UTCEPSS rescore
  5. 2026-07-15 01:59 UTCEPSS rescore
  6. 2026-07-14 02:55 UTCOSV refresh
  7. 2026-07-13 22:29 UTCEPSS rescore
  8. 2026-07-13 06:11 UTCEPSS rescore
  9. 2026-07-12 05:45 UTCEPSS rescore
  10. 2026-07-11 08:26 UTCEPSS rescore
  11. 2026-07-11 08:26 UTCEPSS rescore
  12. 2026-07-09 19:09 UTCEPSS rescore
  13. 2026-07-08 15:14 UTCEPSS rescore
  14. 2026-07-08 15:13 UTCEPSS rescore
  15. 2026-07-07 13:45 UTCEPSS rescore
  16. 2026-07-06 16:26 UTCEPSS rescore
  17. 2026-07-06 02:22 UTCEPSS rescore
  18. 2026-07-06 02:22 UTCEPSS rescore
  19. 2026-07-05 02:29 UTCEPSS rescore
  20. 2026-07-04 06:30 UTCEPSS rescore
  21. 2026-07-01 15:05 UTCEPSS rescore
  22. 2026-06-30 23:21 UTCEPSS rescore
  23. 2026-06-30 23:21 UTCEPSS rescore
  24. 2026-06-29 14:05 UTCEPSS rescore
  25. 2026-06-28 14:06 UTCEPSS rescore
Show 65 more
  1. 2026-06-28 14:06 UTCEPSS rescore
  2. 2026-06-28 04:55 UTCEPSS rescore
  3. 2026-06-28 04:55 UTCEPSS rescore
  4. 2026-06-27 03:07 UTCEPSS rescore
  5. 2026-06-27 03:07 UTCEPSS rescore
  6. 2026-06-26 00:16 UTCOSV refresh
  7. 2026-06-25 13:49 UTCEPSS rescore
  8. 2026-06-24 14:04 UTCEPSS rescore
  9. 2026-06-24 14:04 UTCEPSS rescore
  10. 2026-06-23 21:32 UTCEPSS rescore
  11. 2026-06-23 21:32 UTCEPSS rescore
  12. 2026-06-22 14:25 UTCEPSS rescore
  13. 2026-06-22 14:25 UTCEPSS rescore
  14. 2026-06-21 14:55 UTCEPSS rescore
  15. 2026-06-21 14:55 UTCEPSS rescore
  16. 2026-06-21 01:58 UTCEPSS rescore
  17. 2026-06-21 01:58 UTCEPSS rescore
  18. 2026-06-19 19:25 UTCEPSS rescore
  19. 2026-06-19 19:25 UTCEPSS rescore
  20. 2026-06-18 17:52 UTCEPSS rescore
  21. 2026-06-18 17:51 UTCEPSS rescore
  22. 2026-06-17 17:52 UTCEPSS rescore
  23. 2026-06-16 17:52 UTCEPSS rescore
  24. 2026-06-16 17:52 UTCEPSS rescore
  25. 2026-06-15 17:47 UTCEPSS rescore
  26. 2026-06-14 23:16 UTCEPSS rescore
  27. 2026-06-13 22:59 UTCEPSS rescore
  28. 2026-06-13 22:59 UTCEPSS rescore
  29. 2026-06-12 23:11 UTCEPSS rescore
  30. 2026-06-11 13:59 UTCEPSS rescore
  31. 2026-06-10 22:17 UTCEPSS rescore
  32. 2026-06-10 13:21 UTCEPSS rescore
  33. 2026-06-08 14:16 UTCEPSS rescore
  34. 2026-06-08 13:42 UTCOSV refresh
  35. 2026-06-07 15:24 UTCEPSS rescore
  36. 2026-06-07 15:24 UTCEPSS rescore
  37. 2026-06-06 13:46 UTCEPSS rescore
  38. 2026-06-06 13:46 UTCEPSS rescore
  39. 2026-06-05 22:46 UTCEPSS rescore
  40. 2026-06-05 22:46 UTCEPSS rescore
  41. 2026-06-05 06:09 UTCEPSS rescore
  42. 2026-06-05 06:09 UTCEPSS rescore
  43. 2026-06-04 13:11 UTCEPSS rescore
  44. 2026-06-04 13:11 UTCEPSS rescore
  45. 2026-06-02 20:12 UTCEPSS rescore
  46. 2026-06-01 13:51 UTCEPSS rescore
  47. 2026-06-01 13:51 UTCEPSS rescore
  48. 2026-05-31 22:30 UTCEPSS rescore
  49. 2026-05-31 22:30 UTCEPSS rescore
  50. 2026-05-31 00:15 UTCEPSS rescore
  51. 2026-05-31 00:15 UTCEPSS rescore
  52. 2026-05-29 13:43 UTCEPSS rescore
  53. 2026-05-28 13:44 UTCEPSS rescore
  54. 2026-05-28 13:44 UTCEPSS rescore
  55. 2026-05-28 13:44 UTCEPSS rescore
  56. 2026-05-27 13:40 UTCEPSS rescore
  57. 2026-05-27 13:40 UTCEPSS rescore
  58. 2026-05-27 13:40 UTCEPSS rescore
  59. 2026-05-26 13:43 UTCEPSS rescore
  60. 2026-05-26 13:43 UTCEPSS rescore
  61. 2026-05-26 07:18 UTCEPSS rescore
  62. 2026-05-26 07:18 UTCEPSS rescore
  63. 2026-05-26 07:18 UTCEPSS rescore
  64. 2026-05-23 22:55 UTCEG score recompute
  65. 2026-05-23 22:55 UTCVendor advisory

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2024-39321?
CVE-2024-39321 is a high vulnerability published on July 5, 2024. Traefik is an HTTP reverse proxy and load balancer. Versions prior to 2.11.6, 3.0.4, and 3.1.0-rc3 have a vulnerability that allows bypassing IP allow-lists via HTTP/3 early data requests in QUIC 0-RTT handshakes sent with spoofed IP addresses. Versions 2.11.6, 3.0.4, and 3.1.0-rc3 contain a patch…
When was CVE-2024-39321 disclosed?
CVE-2024-39321 was first published in the National Vulnerability Database on July 5, 2024, with the most recent update on November 25, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-39321 actively exploited?
CVE-2024-39321 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 44.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2024-39321?
CVE-2024-39321 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2024-39321?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-39321, 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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