{"id":"CVE-2026-121968","published":"2026-11-04T21:18:06.670","lastModified":"2026-11-04T21:18:06.670","description":"Netrek-client-cow through 3.3.3 contains an out-of-bounds read vulnerability in short.c handleSMessage() that allows malicious servers to crash clients via an unchecked m_recpt index. Attackers controlling a Netrek server or intercepting the plaintext TCP connection can send SP_S_MESSAGE packets with m_recpt of 36 or more, reading past players[] and shipnos to deny service.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwes":["CWE-129"],"vendors":[],"products":[],"references":[{"url":"https://github.com/quozl/netrek-client-cow","tags":[]},{"url":"https://github.com/quozl/netrek-client-cow/blob/3.3.3/short.c#L942-L943","tags":[]},{"url":"https://github.com/quozl/netrek-client-cow/commit/fb322e74abee3b0b76a9c5a31df6aab5585d3127","tags":[]},{"url":"https://www.vulncheck.com/advisories/netrek-client-cow-through-3.3.3-out-of-bounds-read-via-sp-s-message-packets","tags":[]}],"exploitRefs":[{"url":"https://github.com/quozl/netrek-client-cow","tags":[]},{"url":"https://github.com/quozl/netrek-client-cow/blob/3.3.3/short.c#L942-L943","tags":[]},{"url":"https://github.com/quozl/netrek-client-cow/commit/fb322e74abee3b0b76a9c5a31df6aab5585d3127","tags":[]}],"hasPoc":true,"ai":null}