{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-28214","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-02-25T15:28:40.649Z","datePublished":"2026-04-17T18:35:46.974Z","dateUpdated":"2026-04-20T13:46:08.635Z"},"containers":{"cna":{"title":"Firebird server hangs when using specific clumplet on batch creation","problemTypes":[{"descriptions":[{"cweId":"CWE-190","lang":"en","description":"CWE-190: Integer Overflow or Wraparound","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-835","lang":"en","description":"CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"LOW","baseScore":6,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L","version":"4.0"}}],"references":[{"name":"https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-7cq5-994r-jhrf","tags":["x_refsource_CONFIRM"],"url":"https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-7cq5-994r-jhrf"},{"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":"2026-04-17T18:35:46.974Z"},"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, the ClumpletReader::getClumpletSize() function can overflow the totalLength value when parsing a Wide type clumplet, causing an infinite loop. An authenticated user with INSERT privileges on any table can exploit this via a crafted Batch Parameter Block to cause a denial of service against the server. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14."}],"source":{"advisory":"GHSA-7cq5-994r-jhrf","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-28214","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-04-20T13:41:09.298737Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-20T13:46:08.635Z"}}]}}