AIS-catcher is a multi-platform AIS receiver. Prior to version 0.64, an integer underflow vulnerability exists in the MQTT parsing logic of AIS-catcher. This vulnerability allows an attacker to trigger a massive Heap Buffer Overflow by sending a malformed MQTT packet with a manipulated Topic Length field. This leads to an immediate Denial of Service (DoS) and, when used as a library, severe Memory Corruption that can be leveraged for Remote Code Execution (RCE). This issue has been patched in version 0.64.
History

Mon, 01 Dec 2025 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Ais-catcher Project
Ais-catcher Project ais-catcher
Vendors & Products Ais-catcher Project
Ais-catcher Project ais-catcher

Mon, 01 Dec 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 29 Nov 2025 02:30:00 +0000

Type Values Removed Values Added
Description AIS-catcher is a multi-platform AIS receiver. Prior to version 0.64, an integer underflow vulnerability exists in the MQTT parsing logic of AIS-catcher. This vulnerability allows an attacker to trigger a massive Heap Buffer Overflow by sending a malformed MQTT packet with a manipulated Topic Length field. This leads to an immediate Denial of Service (DoS) and, when used as a library, severe Memory Corruption that can be leveraged for Remote Code Execution (RCE). This issue has been patched in version 0.64.
Title AIS-catcher Integer Underflow in MQTT Packet Parsing leading to Heap Buffer Overflow
Weaknesses CWE-122
CWE-191
References
Metrics cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-12-01T14:11:01.007Z

Reserved: 2025-11-24T23:01:29.678Z

Link: CVE-2025-66217

cve-icon Vulnrichment

Updated: 2025-12-01T13:52:49.406Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-11-29T03:15:59.880

Modified: 2025-12-01T15:39:33.110

Link: CVE-2025-66217

cve-icon Redhat

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