CVE-2025-66217

HIGH EPSS 45.8%
Published Nov 29, 20257mo ago · Modified Jun 17, 20262w ago
8.8 CVSS 4.0
High
Find Similar
Published Nov 29, 2025 7mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
8.8
Exploitability
—
Impact
—
Vector string
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/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 X

Threat Intelligence

EPSS Exploit Probability
45.8% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-122
CWE-191

Affected Products 1

VendorProductVersionRange
aiscatcherais-catcher* <0.64

References 2

  • github.com https://github.com/jvde-github/AIS-catcher/commit/e0f7242eee659909adc11a4c561c3f7011bdefe7
    Patch
  • github.com https://github.com/jvde-github/AIS-catcher/security/advisories/GHSA-93mj-c8q3-69rg
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/jvde-github/AIS-catcher/commit/e0f7242eee659909adc11a4c561c3f7011bdefe7
    Patch