{"id":"CVE-2026-85436","title":"MOOS essential-moos through 10.0.1 contains a buffer overflow vulnerability in CMOOSUDPLink::ReadPktFromArray() that allows remote attackers to corrupt heap memory by sending UDP datagrams with negative declared lengths","summary":"MOOS essential-moos through 10.0.1 contains a buffer overflow vulnerability in CMOOSUDPLink::ReadPktFromArray() that allows remote attackers to corrupt heap memory by sending UDP datagrams with negative declared lengths. Attackers can se…","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-191"],"published":"2026-09-03","updated":"2026-09-08","sourceUpdated":"2026-09-08T20:07:17.943","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-85436","references":[{"url":"https://github.com/themoos/essential-moos","label":"disclosure@vulncheck.com"},{"url":"https://github.com/themoos/essential-moos/blob/b897ea86dba8b61412dc48ac0cfb5ff34cdaf5f6/Essentials/pMOOSBridge/MOOSUDPLink.cpp#L171","label":"disclosure@vulncheck.com"},{"url":"https://github.com/themoos/essential-moos/commit/613175fcf63fb9c6c5329c4ec57c2d18588b33e2","label":"disclosure@vulncheck.com"},{"url":"https://github.com/themoos/essential-moos/pull/21","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/moos-essential-moos-through-10.0.1-pmoosbridge-heap-corruption-via-negative-udp-length","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"epss":0.01192,"epssPercentile":0.6665,"ingestedAt":"2026-09-08T20:10:03.161Z","slug":"CVE-2026-85436","body":"## Overview\n\nMOOS essential-moos through 10.0.1 contains a buffer overflow vulnerability in CMOOSUDPLink::ReadPktFromArray() that allows remote attackers to corrupt heap memory by sending UDP datagrams with negative declared lengths. Attackers can send crafted UDP packets to the configured UDPListen port to trigger an oversized memcpy operation that writes past the destination buffer, causing heap corruption and denial of service.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}