{"id":"CVE-2026-85438","summary":"MOOS-IvP through 24.8.1 Out-of-Bounds Write via Unvalidated IvP Payload Counts","details":"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 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.","modified":"2026-09-05T08:07:39.999811Z","published":"2026-09-03T22:38:29.903Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-190"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85438.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85438.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85438"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/moos-ivp-through-24.8.1-out-of-bounds-write-via-unvalidated-ivp-payload-counts"},{"type":"FIX","url":"https://github.com/moos-ivp/moos-ivp/commit/85f4653ff792b30c3ab14dc0eac0991d1405d904"},{"type":"FIX","url":"https://github.com/moos-ivp/moos-ivp/pull/126"},{"type":"PACKAGE","url":"https://github.com/moos-ivp/moos-ivp"},{"type":"ARTICLE","url":"https://github.com/moos-ivp/moos-ivp/blob/1de9ae146cd63c209e8c3fd81611a4ed2472971b/ivp/src/lib_ivpbuild/FunctionEncoder.cpp#L407"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/moos-ivp/moos-ivp","events":[{"introduced":"0"},{"fixed":"477be7e91bf220185d55e5a2a9dba16dbde32c3f"},{"fixed":"85f4653ff792b30c3ab14dc0eac0991d1405d904"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"24.8.1"}],"source":["DESCRIPTION","REFERENCES"]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-85438.json","vanir_signatures_modified":"2026-09-05T08:07:39Z","vanir_signatures":[{"signature_type":"Function","signature_version":"v1","source":"https://github.com/moos-ivp/moos-ivp/commit/477be7e91bf220185d55e5a2a9dba16dbde32c3f","target":{"file":"ivp/src/lib_mbutil/ReleaseInfo.cpp","function":"showReleaseInfo"},"deprecated":false,"digest":{"function_hash":"205105793825430045765894660149070176882","length":721},"id":"CVE-2026-85438-17eb9c04"},{"deprecated":false,"digest":{"line_hashes":["71475089026327374911439190140854268963","288109013441206453595364179806630758895","108583411300907172617501463823770114997","17171581118612079636848717634386598063"],"threshold":0.9},"id":"CVE-2026-85438-703d642b","signature_type":"Line","signature_version":"v1","source":"https://github.com/moos-ivp/moos-ivp/commit/477be7e91bf220185d55e5a2a9dba16dbde32c3f","target":{"file":"ivp/src/pMarineViewer/main.cpp"}},{"deprecated":false,"digest":{"function_hash":"118965062358282729215132681048895208743","length":2942},"id":"CVE-2026-85438-9c0df7cc","signature_type":"Function","signature_version":"v1","source":"https://github.com/moos-ivp/moos-ivp/commit/477be7e91bf220185d55e5a2a9dba16dbde32c3f","target":{"file":"ivp/src/pMarineViewer/main.cpp","function":"main"}},{"signature_type":"Line","signature_version":"v1","source":"https://github.com/moos-ivp/moos-ivp/commit/477be7e91bf220185d55e5a2a9dba16dbde32c3f","target":{"file":"ivp/src/lib_mbutil/ReleaseInfo.cpp"},"deprecated":false,"digest":{"line_hashes":["221566291563585211413467636629101977597","69881209764151303531923320257498233409","153719805825789704065453832941046288979","196362707078072643545117675400601289962"],"threshold":0.9},"id":"CVE-2026-85438-b57c450a"}]}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}