{"id":"CVE-2026-123200","published":"2026-11-05T19:17:18.953","lastModified":"2026-11-05T19:17:18.953","description":"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.","cvssScore":7.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-129"],"vendors":[],"products":[],"references":[{"url":"https://github.com/vrpn/vrpn/blob/79deb000cc0b47ae49a80c92c78167c02d8a04d8/vrpn_Connection.C#L4482","tags":[]},{"url":"https://github.com/vrpn/vrpn/blob/79deb000cc0b47ae49a80c92c78167c02d8a04d8/vrpn_Connection.C#L4554","tags":[]},{"url":"https://github.com/vrpn/vrpn/commit/0da5b0b71e06e8c318a4e674c84caee12251a782","tags":[]},{"url":"https://github.com/vrpn/vrpn/commit/c893b583d928fd17d756b39271b2eae71766e7f2","tags":[]},{"url":"https://www.vulncheck.com/advisories/vrpn-through-07.36-out-of-bounds-write-via-sender-description-type-description-length-index","tags":[]}],"exploitRefs":[{"url":"https://github.com/vrpn/vrpn/blob/79deb000cc0b47ae49a80c92c78167c02d8a04d8/vrpn_Connection.C#L4482","tags":[]},{"url":"https://github.com/vrpn/vrpn/blob/79deb000cc0b47ae49a80c92c78167c02d8a04d8/vrpn_Connection.C#L4554","tags":[]},{"url":"https://github.com/vrpn/vrpn/commit/0da5b0b71e06e8c318a4e674c84caee12251a782","tags":[]},{"url":"https://github.com/vrpn/vrpn/commit/c893b583d928fd17d756b39271b2eae71766e7f2","tags":[]}],"hasPoc":true,"ai":null}