CVE-2014-3466

NONECVSS 0.0Elevated
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 11%CVSS: —Exploit: NoneExposed: 0

A fix is available — apply it.

Buffer overflow in the read_server_hello function in lib/gnutls_handshake.c in GnuTLS before 3.1.25, 3.2.x before 3.2.15, and 3.3.x before 3.3.4 allows remote servers to cause a denial of service (memory corruption) or possibly execute arbitrary code via a long session id in a ServerHello message.

CVSS v3
—
EG Score
0.0(none)
EPSS
95.5%
KEV
Not listed

Published

June 3, 2014

Last Modified

May 6, 2026

References (66)

Vendor Advisories for CVE-2014-3466(4)

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

Patch Availability(5)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibgnutlsxx27 (2.12.23-12ubuntu2.1) @ trusty2026-05-28ubuntu
redhatrhev-hypervisor6-0:6.5-20140624.0.el6ev2014-06-30redhat
redhatgnutls-0:3.1.18-9.el7_02014-06-10redhat
redhatgnutls-0:1.4.1-16.el5_102014-06-03redhat
redhatgnutls-0:2.8.5-14.el6_52014-06-03redhat

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

(1)

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 / 41× 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. 2026-07-22 14:04 UTCEPSS rescore
  2. 2026-07-22 05:18 UTCOSV refresh
  3. 2026-07-21 15:21 UTCEPSS rescore
  4. 2026-07-21 15:21 UTCEPSS rescore
  5. 2026-07-20 17:03 UTCEPSS rescore
  6. 2026-07-19 14:27 UTCEPSS rescore
  7. 2026-07-19 02:26 UTCEPSS rescore
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  9. 2026-07-18 10:00 UTCEPSS rescore
  10. 2026-07-16 16:59 UTCEPSS rescore
  11. 2026-07-15 16:54 UTCEPSS rescore
  12. 2026-07-15 16:54 UTCEPSS rescore
  13. 2026-07-15 01:56 UTCEPSS rescore
  14. 2026-07-13 22:26 UTCEPSS rescore
  15. 2026-07-13 06:08 UTCEPSS rescore
  16. 2026-07-12 05:42 UTCEPSS rescore
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  18. 2026-07-11 08:23 UTCEPSS rescore
  19. 2026-07-09 19:05 UTCEPSS rescore
  20. 2026-07-08 15:10 UTCEPSS rescore
  21. 2026-07-07 13:42 UTCEPSS rescore
  22. 2026-07-06 16:24 UTCEPSS rescore
  23. 2026-07-06 02:20 UTCEPSS rescore
  24. 2026-07-05 02:26 UTCEPSS rescore
  25. 2026-07-04 23:56 UTCOSV refresh
Show 70 more
  1. 2026-07-04 06:27 UTCEPSS rescore
  2. 2026-07-01 15:02 UTCEPSS rescore
  3. 2026-07-01 15:02 UTCEPSS rescore
  4. 2026-06-30 23:19 UTCEPSS rescore
  5. 2026-06-30 23:19 UTCEPSS rescore
  6. 2026-06-29 14:02 UTCEPSS rescore
  7. 2026-06-28 14:03 UTCEPSS rescore
  8. 2026-06-28 04:53 UTCEPSS rescore
  9. 2026-06-28 04:53 UTCEPSS rescore
  10. 2026-06-27 03:05 UTCEPSS rescore
  11. 2026-06-25 13:47 UTCEPSS rescore
  12. 2026-06-25 13:47 UTCEPSS rescore
  13. 2026-06-24 14:02 UTCEPSS rescore
  14. 2026-06-24 14:02 UTCEPSS rescore
  15. 2026-06-23 21:30 UTCEPSS rescore
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  17. 2026-06-22 14:22 UTCEPSS rescore
  18. 2026-06-22 14:22 UTCEPSS rescore
  19. 2026-06-21 14:54 UTCEPSS rescore
  20. 2026-06-21 01:57 UTCEPSS rescore
  21. 2026-06-18 17:49 UTCEPSS rescore
  22. 2026-06-18 17:49 UTCEPSS rescore
  23. 2026-06-17 17:49 UTCEPSS rescore
  24. 2026-06-17 17:49 UTCEPSS rescore
  25. 2026-06-16 17:50 UTCEPSS rescore
  26. 2026-06-16 17:49 UTCEPSS rescore
  27. 2026-06-16 17:49 UTCEPSS rescore
  28. 2026-06-16 11:44 UTCOSV refresh
  29. 2026-06-14 23:14 UTCEPSS rescore
  30. 2026-06-13 22:57 UTCEPSS rescore
  31. 2026-06-12 23:08 UTCEPSS rescore
  32. 2026-06-11 13:57 UTCEPSS rescore
  33. 2026-06-10 22:15 UTCEPSS rescore
  34. 2026-06-08 14:14 UTCEPSS rescore
  35. 2026-06-07 15:22 UTCEPSS rescore
  36. 2026-06-06 13:45 UTCEPSS rescore
  37. 2026-06-06 13:45 UTCEPSS rescore
  38. 2026-06-05 22:44 UTCEPSS rescore
  39. 2026-06-04 13:09 UTCEPSS rescore
  40. 2026-06-04 13:09 UTCEPSS rescore
  41. 2026-06-02 20:10 UTCEPSS rescore
  42. 2026-06-02 20:10 UTCEPSS rescore
  43. 2026-06-01 13:49 UTCEPSS rescore
  44. 2026-06-01 13:49 UTCEPSS rescore
  45. 2026-05-31 22:28 UTCEPSS rescore
  46. 2026-05-31 22:28 UTCEPSS rescore
  47. 2026-05-31 00:14 UTCEPSS rescore
  48. 2026-05-31 00:14 UTCEPSS rescore
  49. 2026-05-29 13:41 UTCEPSS rescore
  50. 2026-05-28 18:39 UTCEG score recompute
  51. 2026-05-28 18:39 UTCVendor advisory
  52. 2026-05-28 18:39 UTCGHSA enrichment
  53. 2026-05-28 13:42 UTCEPSS rescore
  54. 2026-05-28 13:42 UTCEPSS rescore
  55. 2026-05-28 13:42 UTCEPSS rescore
  56. 2026-05-27 13:38 UTCEPSS rescore
  57. 2026-05-27 13:38 UTCEPSS rescore
  58. 2026-05-26 13:41 UTCEPSS rescore
  59. 2026-05-26 07:16 UTCEPSS rescore
  60. 2026-05-24 16:43 UTCEPSS rescore
  61. 2026-05-22 21:15 UTCEPSS rescore
  62. 2026-05-22 21:15 UTCEPSS rescore
  63. 2026-05-22 21:15 UTCEPSS rescore
  64. 2026-05-21 22:39 UTCEPSS rescore
  65. 2026-05-20 22:37 UTCEPSS rescore
  66. 2026-05-20 22:37 UTCEPSS rescore
  67. 2026-05-20 22:37 UTCEPSS rescore
  68. 2026-05-20 11:21 UTCEPSS rescore
  69. 2026-05-20 11:21 UTCEPSS rescore
  70. 2026-05-18 21:29 UTCEPSS rescore

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 PoCazet/CVE-2014-3466_PoC
    First seen Jun 1, 2014

    Proof of Concept for CVE-2014-3466 (GnuTLS buffer overflow: session id length check)

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(4)

What is CVE-2014-3466?
CVE-2014-3466 is a none vulnerability published on June 3, 2014. Buffer overflow in the readserverhello function in lib/gnutls_handshake.c in GnuTLS before 3.1.25, 3.2.x before 3.2.15, and 3.3.x before 3.3.4 allows remote servers to cause a denial of service (memory corruption) or possibly execute arbitrary code via a long session id in a ServerHello message.
When was CVE-2014-3466 disclosed?
CVE-2014-3466 was first published in the National Vulnerability Database on June 3, 2014, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2014-3466 actively exploited?
CVE-2014-3466 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 95.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2014-3466?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2014-3466, 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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