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CVE-2026-28224

Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, when the server receives an op_crypt_key_callback packet without prior authentication, the port_server_crypt_callback handler is not initialized, resulting in a null pointer dereference and server crash. An unauthenticated attacker who knows only the server's IP and port can exploit this to crash the server. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:103bec09a5a597fce92661836620328c25157386e237e35d5d400bec1bb9bfc9
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"firebird","vendor":"FirebirdSQL","versions":[{"status":"affected","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"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f1fd6f41f73941f2b6535f3c5b3ebfe7ce00a5c60b3e1250135e8ae32d2dc140 · sha256:c81251b0180dd118… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f1fd6f41f73941f2b6535f3c5b3ebfe7ce00a5c60b3e1250135e8ae32d2dc140 · sha256:c81251b0180dd118… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-476","description":"CWE-476: NULL Pointer Dereference","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f1fd6f41f73941f2b6535f3c5b3ebfe7ce00a5c60b3e1250135e8ae32d2dc140 · sha256:c81251b0180dd118… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"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"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f1fd6f41f73941f2b6535f3c5b3ebfe7ce00a5c60b3e1250135e8ae32d2dc140 · sha256:c81251b0180dd118… · /containers/cna/references/1
{"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"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f1fd6f41f73941f2b6535f3c5b3ebfe7ce00a5c60b3e1250135e8ae32d2dc140 · sha256:c81251b0180dd118… · /containers/cna/references/2
{"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"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f1fd6f41f73941f2b6535f3c5b3ebfe7ce00a5c60b3e1250135e8ae32d2dc140 · sha256:c81251b0180dd118… · /containers/cna/references/3
{"name":"https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-xrcw-wpjx-pr95","tags":["x_refsource_CONFIRM"],"url":"https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-xrcw-wpjx-pr95"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f1fd6f41f73941f2b6535f3c5b3ebfe7ce00a5c60b3e1250135e8ae32d2dc140 · sha256:c81251b0180dd118… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-xrcw-wpjx-pr95"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f1fd6f41f73941f2b6535f3c5b3ebfe7ce00a5c60b3e1250135e8ae32d2dc140 · sha256:c81251b0180dd118… · /containers/adp/0/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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