CVE-2024-27934

HIGHNVD 8.48.4—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.4 under NVD CVSS v3. EPSS exploit probability: 0.4% (30th 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
Elevated
8.4EG
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: 8.4Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 1.36.2 and prior to version 1.40.3, use of inherently unsafe *const c_void and ExternalPointer leads to use-after-free access of the underlying structure, resulting in arbitrary code execution. Use of inherently unsafe *const c_void and ExternalPointer leads to use-after-free access of the underlying structure, which is exploitable by an attacker controlling the code executed inside a Deno runtime to obtain arbitrary code execution on the host machine regardless of permissions. This bug is known to be exploitable for both *const c_void and ExternalPointer implementations. Version 1.40.3 fixes this issue.

CVSS v3
8.4
EG Score
8.4HIGHmedium confidence
EG Risk
54
EG Risk 54/100CISA 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
Severity84% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
31st
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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

March 21, 2024

Last Modified

January 3, 2025

Advisory Details (1)

Auto-updated Sep 2, 2026
🔬 Proof of concept available. Patch available. Sources: github.
githubMentions a patch (unverified)🟡 PoC Available

*const c_void / ExternalPointer unsoundness leading to use-after-free · Advisory · denoland/deno · GitHub

https://github.com/denoland/deno/security/advisories/GHSA-3j27-563v-28wf

Affected Packages

(1 across 1 ecosystem)
crates.io(1)
PackageVulnerable rangeFix by version rangeDependents
deno—
  • 1.36.2 up to 1.40.3: fixed in 1.40.3
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 30× 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 189 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. 2026-10-06 15:15 UTCEPSS rescore
  5. 2026-10-05 17:41 UTCEPSS rescore
  6. 2026-10-04 23:20 UTCEPSS rescore
  7. 2026-10-03 14:24 UTCEPSS rescore
  8. 2026-10-01 19:48 UTCEPSS rescore
  9. 2026-09-30 17:00 UTCEG score recompute
  10. 2026-09-30 15:01 UTCEPSS rescore
  11. 2026-09-29 15:17 UTCEPSS rescore
  12. 2026-09-27 13:43 UTCEPSS rescore
  13. 2026-09-26 15:57 UTCEPSS rescore
  14. 2026-09-26 00:23 UTCEPSS rescore
  15. 2026-09-24 14:01 UTCEPSS rescore
  16. 2026-09-23 13:46 UTCEPSS rescore
  17. 2026-09-23 13:46 UTCEPSS rescore
  18. 2026-09-22 14:46 UTCEPSS rescore
  19. 2026-09-22 05:16 UTCOSV refresh
  20. 2026-09-20 20:14 UTCEPSS rescore
  21. 2026-09-19 15:40 UTCEPSS rescore
  22. 2026-09-18 19:26 UTCEPSS rescore
  23. 2026-09-16 14:06 UTCEPSS rescore
  24. 2026-09-16 14:06 UTCEPSS rescore
  25. 2026-09-15 03:08 UTCEPSS rescore
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  1. 2026-09-15 03:08 UTCEPSS rescore
  2. 2026-09-13 16:45 UTCEPSS rescore
  3. 2026-09-12 14:59 UTCEPSS rescore
  4. 2026-09-11 14:51 UTCEPSS rescore
  5. 2026-09-11 09:35 UTCEPSS rescore
  6. 2026-09-08 21:58 UTCEPSS rescore
  7. 2026-09-07 15:59 UTCEPSS rescore
  8. 2026-09-06 13:46 UTCEPSS rescore
  9. 2026-09-06 13:46 UTCEPSS rescore
  10. 2026-09-05 15:26 UTCEPSS rescore
  11. 2026-09-04 13:58 UTCEPSS rescore
  12. 2026-09-04 05:05 UTCEPSS rescore
  13. 2026-09-03 02:59 UTCOSV refresh
  14. 2026-09-02 14:10 UTCEPSS rescore
  15. 2026-09-01 13:52 UTCEPSS rescore
  16. 2026-08-30 19:15 UTCEPSS rescore
  17. 2026-08-30 01:20 UTCEPSS rescore
  18. 2026-08-28 21:39 UTCEPSS rescore
  19. 2026-08-27 14:23 UTCEPSS rescore
  20. 2026-08-26 14:44 UTCEPSS rescore
  21. 2026-08-25 13:47 UTCEPSS rescore
  22. 2026-08-24 14:15 UTCEPSS rescore
  23. 2026-08-23 00:17 UTCEPSS rescore
  24. 2026-08-21 23:47 UTCEPSS rescore
  25. 2026-08-20 22:53 UTCEPSS rescore
  26. 2026-08-19 17:02 UTCEPSS rescore
  27. 2026-08-19 17:02 UTCEPSS rescore
  28. 2026-08-18 13:46 UTCEPSS rescore
  29. 2026-08-18 13:46 UTCEPSS rescore
  30. 2026-08-17 13:45 UTCEPSS rescore
  31. 2026-08-16 16:14 UTCOSV refresh
  32. 2026-08-16 14:54 UTCEPSS rescore
  33. 2026-08-16 02:13 UTCEPSS rescore
  34. 2026-08-15 01:28 UTCEPSS rescore
  35. 2026-08-13 21:59 UTCEPSS rescore
  36. 2026-08-12 13:49 UTCEPSS rescore
  37. 2026-08-11 13:40 UTCEPSS rescore
  38. 2026-08-10 23:58 UTCEPSS rescore
  39. 2026-08-09 13:45 UTCEPSS rescore
  40. 2026-08-08 16:35 UTCEPSS rescore
  41. 2026-08-07 16:25 UTCEPSS rescore
  42. 2026-08-06 13:45 UTCEPSS rescore
  43. 2026-08-05 19:16 UTCEPSS rescore
  44. 2026-08-04 15:08 UTCEPSS rescore
  45. 2026-08-04 10:36 UTCEPSS rescore
  46. 2026-08-03 10:34 UTCEPSS rescore
  47. 2026-08-02 02:25 UTCEPSS rescore
  48. 2026-08-02 02:25 UTCEPSS rescore
  49. 2026-08-01 09:36 UTCOSV refresh
  50. 2026-08-01 04:14 UTCEPSS rescore
  51. 2026-07-30 16:26 UTCEPSS rescore
  52. 2026-07-30 16:26 UTCEPSS rescore
  53. 2026-07-30 01:29 UTCEPSS rescore
  54. 2026-07-28 15:34 UTCEPSS rescore
  55. 2026-07-27 14:11 UTCEPSS rescore
  56. 2026-07-26 14:53 UTCEPSS rescore
  57. 2026-07-26 14:53 UTCEPSS rescore
  58. 2026-07-25 14:16 UTCEPSS rescore
  59. 2026-07-24 14:16 UTCEPSS rescore
  60. 2026-07-23 02:35 UTCEG score recompute
  61. 2026-07-22 14:07 UTCEPSS rescore
  62. 2026-07-21 15:23 UTCEPSS rescore
  63. 2026-07-20 17:06 UTCEPSS rescore
  64. 2026-07-19 02:28 UTCEPSS rescore
  65. 2026-07-19 02:28 UTCEPSS rescore
  66. 2026-07-18 10:03 UTCEPSS rescore
  67. 2026-07-18 10:03 UTCEPSS rescore
  68. 2026-07-16 17:01 UTCEPSS rescore
  69. 2026-07-15 16:56 UTCEPSS rescore
  70. 2026-07-15 16:56 UTCEPSS rescore
  71. 2026-07-15 01:59 UTCEPSS rescore
  72. 2026-07-15 01:59 UTCEPSS rescore
  73. 2026-07-14 16:25 UTCOSV refresh
  74. 2026-07-13 22:28 UTCEPSS rescore
  75. 2026-07-13 06:11 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2024-27934?
CVE-2024-27934 is a high vulnerability published on March 21, 2024. Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 1.36.2 and prior to version 1.40.3, use of inherently unsafe const c_void and ExternalPointer leads to use-after-free access of the underlying structure, resulting in arbitrary code execution. Use of inherently unsafe…
When was CVE-2024-27934 disclosed?
CVE-2024-27934 was first published on March 21, 2024, with the most recent update on January 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-27934 actively exploited?
CVE-2024-27934 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (31st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-27934?
CVE-2024-27934 has a CVSS v3 base score of 8.4 (NVD).
How do I remediate CVE-2024-27934?
A fix for CVE-2024-27934 is available: update to the fixed version the vendor names in its advisory.

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