CVE-2025-66216

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 60% 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
Elevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

AIS-catcher is a multi-platform AIS receiver. Prior to version 0.64, a heap buffer overflow vulnerability has been identified in the AIS::Message class of AIS-catcher. This vulnerability allows an attacker to write approximately 1KB of arbitrary data into a 128-byte buffer. This issue has been patched in version 0.64.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

November 29, 2025

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Sep 13, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github.
github Patch Available🟡 PoC Available

Heap Buffer Overflow leading to RCE in `AIS::Message` · Advisory · jvde-github/AIS-catcher · GitHub

https://github.com/jvde-github/AIS-catcher/security/advisories/GHSA-v53x-f5hh-g2g6
github_commit

commit 3de0ef785fc3 (jvde-github/AIS-catcher)

Fix landed in jvde-github/AIS-catcher commit 3de0ef785fc3 — awaiting tagged release

https://github.com/jvde-github/AIS-catcher/commit/3de0ef785fc3c96265a71b37df7b0a82cb279312

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 27× 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 152 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2025-66216?
CVE-2025-66216 is a critical vulnerability published on November 29, 2025. AIS-catcher is a multi-platform AIS receiver. Prior to version 0.64, a heap buffer overflow vulnerability has been identified in the AIS::Message class of AIS-catcher. This vulnerability allows an attacker to write approximately 1KB of arbitrary data into a 128-byte buffer. This issue has been…
When was CVE-2025-66216 disclosed?
CVE-2025-66216 was first published in the National Vulnerability Database on November 29, 2025, 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-2025-66216 actively exploited?
CVE-2025-66216 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 57.8% of all scored CVEs.
What is the CVSS score of CVE-2025-66216?
CVE-2025-66216 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2025-66216?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-66216, 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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