{"id":"CVE-2026-85438","title":"MOOS-IvP through 24.8.1 contains a buffer overflow vulnerability in StringToIvPFunction() where dimension, piece, and degree counts from encoded BHV_IPF payloads are used as allocation sizes and loop bounds without validation","summary":"MOOS-IvP through 24.8.1 contains a buffer overflow vulnerability in StringToIvPFunction() where dimension, piece, and degree counts from encoded BHV_IPF payloads are used as allocation sizes and loop bounds without validation. Attackers …","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-190"],"vendor":"moos-ivp","product":"moos-ivp","affected":["moos-ivp <= 24.8.1"],"published":"2026-09-03","updated":"2026-09-14","sourceUpdated":"2026-09-14T14:17:13.980","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-85438","references":[{"url":"https://github.com/moos-ivp/moos-ivp","label":"disclosure@vulncheck.com"},{"url":"https://github.com/moos-ivp/moos-ivp/blob/1de9ae146cd63c209e8c3fd81611a4ed2472971b/ivp/src/lib_ivpbuild/FunctionEncoder.cpp#L407","label":"disclosure@vulncheck.com"},{"url":"https://github.com/moos-ivp/moos-ivp/commit/85f4653ff792b30c3ab14dc0eac0991d1405d904","label":"disclosure@vulncheck.com"},{"url":"https://github.com/moos-ivp/moos-ivp/pull/126","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/moos-ivp-through-24.8.1-out-of-bounds-write-via-unvalidated-ivp-payload-counts","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-14T13:08:17.831933Z"},"epss":0.00486,"epssPercentile":0.40983,"ingestedAt":"2026-09-08T20:10:03.161Z","slug":"CVE-2026-85438","body":"## Overview\n\nMOOS-IvP through 24.8.1 contains a buffer overflow vulnerability in StringToIvPFunction() where dimension, piece, and degree counts from encoded BHV_IPF payloads are used as allocation sizes and loop bounds without validation. Attackers can supply crafted payloads with mismatched dimension values to write attacker-controlled doubles past the end of the IvPBox weight array, causing memory corruption and potential code execution.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}