{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33337","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-03-18T22:15:11.812Z","datePublished":"2026-04-17T18:48:47.953Z","dateUpdated":"2026-04-17T19:21:17.132Z"},"containers":{"cna":{"title":"Firebird has a buffer overflow when parsing corrupted slice packets","problemTypes":[{"descriptions":[{"cweId":"CWE-120","lang":"en","description":"CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-502","lang":"en","description":"CWE-502: Deserialization of Untrusted Data","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-89mq-229g-x47p","tags":["x_refsource_CONFIRM"],"url":"https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-89mq-229g-x47p"},{"name":"https://github.com/FirebirdSQL/firebird/releases/tag/v3.0.14","tags":["x_refsource_MISC"],"url":"https://github.com/FirebirdSQL/firebird/releases/tag/v3.0.14"},{"name":"https://github.com/FirebirdSQL/firebird/releases/tag/v4.0.7","tags":["x_refsource_MISC"],"url":"https://github.com/FirebirdSQL/firebird/releases/tag/v4.0.7"},{"name":"https://github.com/FirebirdSQL/firebird/releases/tag/v5.0.4","tags":["x_refsource_MISC"],"url":"https://github.com/FirebirdSQL/firebird/releases/tag/v5.0.4"}],"affected":[{"vendor":"FirebirdSQL","product":"firebird","versions":[{"version":">= 3.0.0, < 3.0.14","status":"affected"},{"version":">= 4.0.0, < 4.0.7","status":"affected"},{"version":">= 5.0.0, < 5.0.4","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-04-17T18:48:47.953Z"},"descriptions":[{"lang":"en","value":"Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, when deserializing a slice packet, the xdr_datum() function does not validate that a cstring length conforms to the slice descriptor bounds, allowing a cstring longer than the allocated buffer to overflow it. An unauthenticated attacker can exploit this by sending a crafted packet to the server, potentially causing a crash or other security impact. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14."}],"source":{"advisory":"GHSA-89mq-229g-x47p","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-17T19:21:08.979325Z","id":"CVE-2026-33337","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"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":"2026-04-17T19:21:17.132Z"}}]}}