CVE-2026-33337
- Source
- https://cve.org/CVERecord?id=CVE-2026-33337
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33337.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-33337
- Aliases
-
- GHSA-89mq-229g-x47p
- Downstream
DEBIAN (1)
ECHO (1)
SUSE (1)
UBUNTU (1)
- Related
- Published
- 2026-04-17T18:48:47Z
- Modified
- 2026-10-28T02:30:48Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- Firebird has a buffer overflow when parsing corrupted slice packets
- Details
-
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.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-120", "CWE-502" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33337.json" }- References
-
- https://github.com/FirebirdSQL/firebird/releases/tag/v3.0.14
- https://github.com/FirebirdSQL/firebird/releases/tag/v4.0.7
- https://github.com/FirebirdSQL/firebird/releases/tag/v5.0.4
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33337.json
- https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-89mq-229g-x47p
- https://nvd.nist.gov/vuln/detail/CVE-2026-33337
Affected packages
Git / github.com/firebirdsql/firebird
Affected ranges
- Type
- GIT
- Repo
- https://github.com/firebirdsql/firebird
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:firebirdsql:firebird:*:*:*:*:*:*:*:*", "range": [ { "introduced": "3.0.0" }, { "fixed": "3.0.14" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:firebirdsql:firebird:*:*:*:*:*:*:*:*", "range": [ { "introduced": "4.0.0" }, { "fixed": "4.0.7" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:firebirdsql:firebird:*:*:*:*:*:*:*:*", "range": [ { "introduced": "5.0.0" }, { "fixed": "5.0.4" } ], "source": "CPE_RANGE" }, { "original_tag": "v3.0.14", "range": [ { "fixed": "463bae029a4426deff7e9bb08a8317aaa398c7c7" } ], "source": "REFERENCES_TAG" }, { "original_tag": "v4.0.7", "range": [ { "fixed": "26f6881c9eac77c5e3166d209682c0ebe8dd07c0" } ], "source": "REFERENCES_TAG" }, { "original_tag": "v5.0.4", "range": [ { "fixed": "f6d83a28c009ab039ea40ffdb4ccc58f190dfbe6" } ], "source": "REFERENCES_TAG" } ] }