{"id":"CVE-2026-123200","summary":"VRPN through 07.36 Out-of-bounds Write via SENDER_DESCRIPTION/TYPE_DESCRIPTION length index","details":"VRPN through 07.36 contains an out-of-bounds stack write vulnerability in vrpn_Endpoint::handle_sender_message() and handle_type_message() that allows unauthenticated remote peers to write outside a stack buffer via an unchecked length index. Attackers can connect, complete the version-cookie exchange, and send a SENDER_DESCRIPTION or TYPE_DESCRIPTION message with an out-of-range or negative index to crash the process.","modified":"2026-11-05T21:32:31.131631433Z","published":"2026-11-05T18:16:37.053Z","database_specific":{"cwe_ids":["CWE-129"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/123xxx/CVE-2026-123200.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/123xxx/CVE-2026-123200.json"},{"type":"PACKAGE","url":"https://github.com/vrpn/vrpn"},{"type":"ARTICLE","url":"https://github.com/vrpn/vrpn/blob/79deb000cc0b47ae49a80c92c78167c02d8a04d8/vrpn_Connection.C#L4482"},{"type":"ARTICLE","url":"https://github.com/vrpn/vrpn/blob/79deb000cc0b47ae49a80c92c78167c02d8a04d8/vrpn_Connection.C#L4554"},{"type":"FIX","url":"https://github.com/vrpn/vrpn/commit/0da5b0b71e06e8c318a4e674c84caee12251a782"},{"type":"FIX","url":"https://github.com/vrpn/vrpn/commit/c893b583d928fd17d756b39271b2eae71766e7f2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123200"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/vrpn-through-07.36-out-of-bounds-write-via-sender-description-type-description-length-index"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/vrpn/vrpn","events":[{"introduced":"0"},{"last_affected":"79deb000cc0b47ae49a80c92c78167c02d8a04d8"},{"fixed":"0da5b0b71e06e8c318a4e674c84caee12251a782"},{"fixed":"c893b583d928fd17d756b39271b2eae71766e7f2"}],"database_specific":{"extracted_events":[{"source":"AFFECTED_FIELD","strategy":"StandardRange","range":[{"introduced":"0"},{"last_affected":"07.36"}]},{"source":"REFERENCES_COMMIT","range":[{"fixed":"0da5b0b71e06e8c318a4e674c84caee12251a782"}]},{"range":[{"fixed":"c893b583d928fd17d756b39271b2eae71766e7f2"}],"source":"REFERENCES_COMMIT"}]}}],"versions":["version_07.36","v07.36","version_07.35","v07.35","version_07.34","v07.34","version_07.32","v07.32","version_07.31","v07.31","version_07.30","v07.30","gooddirectshow","version_07.29","V07.29","version07.28","version_07.28","version_07.27","v07.27"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-123200.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}