{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-122126","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-11-04T18:12:35.108Z","datePublished":"2026-11-04T20:36:48.295Z","dateUpdated":"2026-11-05T19:34:17.666Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-11-05T17:17:20.427Z"},"datePublic":"2026-11-02T00:00:00.000Z","title":"reSIProcate reTurn client through 1.14.0 Heap Buffer Overflow via TurnTcpSocket","descriptions":[{"lang":"en","value":"reSIProcate reTurn client through 1.14.0 contains a heap buffer overflow in TurnTcpSocket::handleReadHeader(), which TurnTlsSocket inherits, that allows malicious TURN servers or on-path attackers to overwrite memory via oversized frame lengths. Attackers can send STUN or ChannelData frames declaring up to 65535 bytes, writing roughly 57 KB past the fixed 8192-byte mReadBuffer and crashing the client. Only the synchronous TCP and TLS client is affected; the asynchronous client (TurnAsyncSocket) and the reTurn server are not."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Heap-based Buffer Overflow","cweId":"CWE-122","type":"CWE"}]}],"affected":[{"vendor":"resiprocate","product":"resiprocate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.14.0","versionType":"custom"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:resiprocate:resiprocate:*:*:*:*:*:*:*:*","versionEndIncluding":"1.14.0"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":5.9,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/resiprocate/resiprocate/pull/496","tags":["issue-tracking","patch"],"name":"Pull Request #496"},{"url":"https://github.com/resiprocate/resiprocate/commit/5bb559fd96298073cab369fdfa610f981fb01e95","tags":["patch"],"name":"Patch Commit"},{"url":"https://github.com/resiprocate/resiprocate","tags":["product"]},{"url":"https://github.com/resiprocate/resiprocate/blob/resiprocate-1.14.0/reTurn/client/TurnTcpSocket.cxx#L124-L147","tags":["technical-description"]},{"name":"VulnCheck Advisory: reSIProcate reTurn client through 1.14.0 Heap Buffer Overflow via TurnTcpSocket","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/resiprocate-return-client-through-1.14.0-heap-buffer-overflow-via-turntcpsocket"}],"credits":[{"lang":"en","value":"Deus Rex","type":"finder"},{"lang":"en","value":"kitkatt7","type":"finder"},{"lang":"en","value":"kitkatt7","type":"remediation developer"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-11-05T19:34:00.602010Z","id":"CVE-2026-122126","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-11-05T19:34:17.666Z"}}]}}