Which versions of Ais Catcher are affected by CVE-2025-66216?

Organizations using AIS-catcher face critical risk from CVE-2025-66216 rated CVSS 9.3.. A patch is available.

Is there a public PoC exploit available for CVE-2025-66216?

Yes, a public proof-of-concept exploit is available for CVE-2025-66216. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-66216?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Vendor patch is available.

Ais Catcher CVE-2025-66216

Q: What is the CVSS score of CVE-2025-66216?

CVE-2025-66216 has a CVSS 4.0 base score of 9.3 (Critical). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.1%.

CRITICAL

Incorrect Calculation of Buffer Size (CWE-131)

2025-11-29 security-advisories@github.com

Buffer Overflow Ais Catcher

9.3

CVSS 4.0 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

9.3 CRITICAL

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:24 vuln.today

Patch released

Mar 28, 2026 - 19:24 nvd

Patch available

PoC Detected

Dec 23, 2025 - 16:13 vuln.today

Public exploit code

CVE Published

Nov 29, 2025 - 03:15 nvd

CRITICAL 9.3

DescriptionGitHub Advisory

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.

AnalysisAI

AIS-catcher is a multi-platform AIS receiver. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-131. 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. Affected products include: Aiscatcher Ais-Catcher. Version information: version 0.64.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

CVE-2025-66216 vulnerability details – vuln.today

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