{"id":"CVE-2025-66217","title":"AIS-catcher is a multi-platform AIS receiver","summary":"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 s…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-122","CWE-191","CWE-191"],"vendor":"aiscatcher","product":"ais-catcher","affected":["ais-catcher < 0.64"],"patched":["ais-catcher 0.64"],"published":"2025-11-29","updated":"2026-10-07","sourceUpdated":"2026-10-07T20:10:01.970","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-66217","references":[{"url":"https://github.com/jvde-github/AIS-catcher/commit/e0f7242eee659909adc11a4c561c3f7011bdefe7","label":"security-advisories@github.com"},{"url":"https://github.com/jvde-github/AIS-catcher/security/advisories/GHSA-93mj-c8q3-69rg","label":"security-advisories@github.com"},{"url":"https://github.com/jvde-github/AIS-catcher/security/advisories/GHSA-93mj-c8q3-69rg","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00726,"epssPercentile":0.52569,"ingestedAt":"2026-10-07T20:46:46.740Z","slug":"CVE-2025-66217","body":"## Overview\n\nAIS-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.\n\n## Affected\n\n- `ais-catcher < 0.64`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `ais-catcher 0.64`","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}