{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-49420","assignerOrgId":"63664ac6-956c-4cba-a5d0-f46076e16109","state":"PUBLISHED","assignerShortName":"freebsd","dateReserved":"2026-05-29T20:24:28.616Z","datePublished":"2026-08-19T05:20:00.559Z","dateUpdated":"2026-08-20T03:55:48.116Z"},"containers":{"cna":{"datePublic":"2026-06-30T20:00:00.000Z","title":"Buffer overflow in libalias RTSP handler","references":[{"tags":["vendor-advisory"],"url":"https://security.freebsd.org/advisories/FreeBSD-SA-26:41.libalias.asc"}],"affected":[{"defaultStatus":"unknown","modules":["libalias"],"product":"FreeBSD","vendor":"FreeBSD","versions":[{"status":"affected","versionType":"release","version":"15.1-RELEASE","lessThan":"p1"},{"status":"affected","versionType":"release","version":"15.0-RELEASE","lessThan":"p11"},{"status":"affected","versionType":"release","version":"14.4-RELEASE","lessThan":"p7"},{"status":"affected","versionType":"release","version":"14.3-RELEASE","lessThan":"p16"}]}],"credits":[{"lang":"en","type":"finder","value":"Atuin - Automated Vulnerability Discovery Engine, Tianchu Chen of Tencent Xuanwu Lab"},{"lang":"en","type":"finder","value":"UC Berkeley Antiproof"},{"lang":"en","type":"finder","value":"Stanislav Fort of Aisle Research"}],"descriptions":[{"lang":"en","value":"The RTSP handler in libalias rewrote outgoing packets into a fixed-length stack buffer without checking whether the rewritten data fit in the buffer, or whether the result fit back in the original packet.\n\nA host sending crafted RTSP traffic from inside a NAT gateway using libalias can overflow a stack buffer, potentially achieving remote code execution in the kernel (when using ipfw(4) NAT) or in the natd(8) process (which generally runs as the root user)."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","description":"CWE-121: Stack-based Buffer Overflow","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"63664ac6-956c-4cba-a5d0-f46076e16109","shortName":"freebsd","dateUpdated":"2026-08-19T05:20:00.559Z"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":8.8,"attackVector":"ADJACENT_NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-08-19T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-49420"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-20T03:55:48.116Z"}}]}}