CVE-2024-37305

HIGHNVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.2 under NVD CVSS v3. EPSS exploit probability: 0.4% (36th percentile of EPSS-scored CVEs). 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
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 8.2Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

oqs-provider is a provider for the OpenSSL 3 cryptography library that adds support for post-quantum cryptography in TLS, X.509, and S/MIME using post-quantum algorithms from liboqs. Flaws have been identified in the way oqs-provider handles lengths decoded with DECODE_UINT32 at the start of serialized hybrid (traditional + post-quantum) keys and signatures. Unchecked length values are later used for memory reads and writes; malformed input can lead to crashes or information leakage. Handling of plain/non-hybrid PQ key operation is not affected. This issue has been patched in in v0.6.1. All users are advised to upgrade. There are no workarounds for this issue.

CVSS v3
8.2
EG Score
8.2HIGHmedium confidence
EG Risk
37
EG Risk 37/100CISA SSVC

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
Severity82% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
37th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

June 17, 2024

Last Modified

April 15, 2026

Advisory Details (2)

Auto-updated Sep 8, 2026
Patch available. Sources: github_pr, github.
githubMentions a patch (unverified)

Buffer overflow in deserialization · Advisory · open-quantum-safe/oqs-provider · GitHub

Affected: v0.6.1.

https://github.com/open-quantum-safe/oqs-provider/security/advisories/GHSA-pqvr-5cr8-v6fx
github_pr Patch Available

DECODE_UINT32 without lengths checked fixed

Patch available: open-quantum-safe/oqs-provider 0.6.1-rc1 (PR #416 merged 2024-05-21)

https://github.com/open-quantum-safe/oqs-provider/pull/416

Weakness Classification(5)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 33× 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 207 total refreshes for this CVE.

  1. 2026-10-09 20:05 UTCEPSS rescore
  2. 2026-10-08 17:07 UTCEPSS rescore
  3. 2026-10-07 23:46 UTCEPSS rescore
  4. 2026-10-07 11:05 UTCOSV refresh
  5. 2026-10-06 15:15 UTCEPSS rescore
  6. 2026-10-05 17:41 UTCEPSS rescore
  7. 2026-10-04 23:20 UTCEPSS rescore
  8. 2026-10-03 14:24 UTCEPSS rescore
  9. 2026-10-01 19:48 UTCEPSS rescore
  10. 2026-09-30 19:47 UTCEG score recompute
  11. 2026-09-30 15:01 UTCEPSS rescore
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  13. 2026-09-29 15:17 UTCEPSS rescore
  14. 2026-09-28 13:49 UTCEPSS rescore
  15. 2026-09-27 13:44 UTCEPSS rescore
  16. 2026-09-26 15:57 UTCEPSS rescore
  17. 2026-09-26 00:23 UTCEPSS rescore
  18. 2026-09-24 14:01 UTCEPSS rescore
  19. 2026-09-23 13:46 UTCEPSS rescore
  20. 2026-09-22 14:46 UTCEPSS rescore
  21. 2026-09-21 20:32 UTCEPSS rescore
  22. 2026-09-20 20:14 UTCEPSS rescore
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  24. 2026-09-19 15:40 UTCEPSS rescore
  25. 2026-09-18 19:26 UTCEPSS rescore
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  1. 2026-09-17 17:20 UTCOSV refresh
  2. 2026-09-16 14:06 UTCEPSS rescore
  3. 2026-09-15 03:08 UTCEPSS rescore
  4. 2026-09-15 03:08 UTCEPSS rescore
  5. 2026-09-13 16:45 UTCEPSS rescore
  6. 2026-09-12 14:59 UTCEPSS rescore
  7. 2026-09-11 14:51 UTCEPSS rescore
  8. 2026-09-11 09:35 UTCEPSS rescore
  9. 2026-09-08 21:58 UTCEPSS rescore
  10. 2026-09-07 16:00 UTCEPSS rescore
  11. 2026-09-07 15:59 UTCEPSS rescore
  12. 2026-09-06 13:46 UTCEPSS rescore
  13. 2026-09-05 15:26 UTCEPSS rescore
  14. 2026-09-04 13:59 UTCEPSS rescore
  15. 2026-09-04 05:05 UTCEPSS rescore
  16. 2026-09-02 14:10 UTCEPSS rescore
  17. 2026-09-01 13:52 UTCEPSS rescore
  18. 2026-09-01 04:37 UTCEPSS rescore
  19. 2026-08-30 19:15 UTCEPSS rescore
  20. 2026-08-30 01:20 UTCEPSS rescore
  21. 2026-08-29 17:13 UTCOSV refresh
  22. 2026-08-28 21:39 UTCEPSS rescore
  23. 2026-08-27 14:23 UTCEPSS rescore
  24. 2026-08-26 14:44 UTCEPSS rescore
  25. 2026-08-25 13:47 UTCEPSS rescore
  26. 2026-08-24 14:15 UTCEPSS rescore
  27. 2026-08-23 00:18 UTCEPSS rescore
  28. 2026-08-21 23:47 UTCEPSS rescore
  29. 2026-08-20 22:53 UTCEPSS rescore
  30. 2026-08-19 17:02 UTCEPSS rescore
  31. 2026-08-18 13:46 UTCEPSS rescore
  32. 2026-08-17 13:45 UTCEPSS rescore
  33. 2026-08-16 14:54 UTCEPSS rescore
  34. 2026-08-16 02:13 UTCEPSS rescore
  35. 2026-08-15 01:28 UTCEPSS rescore
  36. 2026-08-13 21:59 UTCEPSS rescore
  37. 2026-08-13 04:30 UTCOSV refresh
  38. 2026-08-12 13:49 UTCEPSS rescore
  39. 2026-08-11 13:40 UTCEPSS rescore
  40. 2026-08-10 23:58 UTCEPSS rescore
  41. 2026-08-09 13:45 UTCEPSS rescore
  42. 2026-08-08 16:35 UTCEPSS rescore
  43. 2026-08-07 16:25 UTCEPSS rescore
  44. 2026-08-06 13:45 UTCEPSS rescore
  45. 2026-08-05 19:16 UTCEPSS rescore
  46. 2026-08-04 15:08 UTCEPSS rescore
  47. 2026-08-04 10:36 UTCEPSS rescore
  48. 2026-08-03 10:34 UTCEPSS rescore
  49. 2026-08-03 10:34 UTCEPSS rescore
  50. 2026-08-02 02:25 UTCEPSS rescore
  51. 2026-08-01 04:14 UTCEPSS rescore
  52. 2026-08-01 04:14 UTCEPSS rescore
  53. 2026-07-30 16:26 UTCEPSS rescore
  54. 2026-07-30 16:26 UTCEPSS rescore
  55. 2026-07-30 01:29 UTCEPSS rescore
  56. 2026-07-28 15:34 UTCEPSS rescore
  57. 2026-07-28 12:50 UTCOSV refresh
  58. 2026-07-27 14:11 UTCEPSS rescore
  59. 2026-07-26 14:53 UTCEPSS rescore
  60. 2026-07-25 14:16 UTCEPSS rescore
  61. 2026-07-24 14:16 UTCEPSS rescore
  62. 2026-07-23 14:17 UTCEPSS rescore
  63. 2026-07-23 14:17 UTCEPSS rescore
  64. 2026-07-23 02:38 UTCEG score recompute
  65. 2026-07-22 14:07 UTCEPSS rescore
  66. 2026-07-22 14:07 UTCEPSS rescore
  67. 2026-07-21 15:23 UTCEPSS rescore
  68. 2026-07-21 15:23 UTCEPSS rescore
  69. 2026-07-20 17:06 UTCEPSS rescore
  70. 2026-07-19 14:30 UTCEPSS rescore
  71. 2026-07-19 14:30 UTCEPSS rescore
  72. 2026-07-19 02:28 UTCEPSS rescore
  73. 2026-07-19 02:28 UTCEPSS rescore
  74. 2026-07-18 10:03 UTCEPSS rescore
  75. 2026-07-16 17:02 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2024-37305?
CVE-2024-37305 is a high vulnerability published on June 17, 2024. oqs-provider is a provider for the OpenSSL 3 cryptography library that adds support for post-quantum cryptography in TLS, X.509, and S/MIME using post-quantum algorithms from liboqs. Flaws have been identified in the way oqs-provider handles lengths decoded with DECODE_UINT32 at the start of…
When was CVE-2024-37305 disclosed?
CVE-2024-37305 was first published on June 17, 2024, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-37305 actively exploited?
CVE-2024-37305 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (37th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-37305?
CVE-2024-37305 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2024-37305?
A fix for CVE-2024-37305 is available: update to the fixed version the vendor names in its advisory.

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