CVE-2025-66217

7.5 HIGH
Published: November 29, 2025 Modified: December 23, 2025

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/jvde-github/AIS-catcher/security/advisories/GHSA-93mj-c8q3-69rg
Source: security-advisories@github.com
Exploit Vendor Advisory
https://github.com/jvde-github/AIS-catcher/security/advisories/GHSA-93mj-c8q3-69rg
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit Vendor Advisory

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
0.4%
57th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

aiscatcher