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CVE

CVE-2025-66217

AIS-catcher Integer Underflow in MQTT Packet Parsing leading to Heap Buffer Overflow
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CVE

CVE-2025-66217

AIS-catcher Integer Underflow in MQTT Packet Parsing leading to Heap Buffer Overflow

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.8
-
4.0
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
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66217.json, https://github.com/jvde-github/AIS-catcher/commit/e0f7242eee659909adc11a4c561c3f7011bdefe7, https://github.com/jvde-github/AIS-catcher/security/advisories/GHSA-93mj-c8q3-69rg, https://nvd.nist.gov/vuln/detail/CVE-2025-66217

Severity

0

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
0
EPSS Probability
0.00524%
EPSS Percentile
0.66337%
Introduced Version
0
Fix Available
28b7fb3bff2b2048e05c3fd170021986521ddbb9

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