High severity7.5NVD Advisory· Published Apr 17, 2026· Updated Apr 24, 2026
CVE-2026-28212
CVE-2026-28212
Description
Firebird is an open-source relational database management system. In versions prior to 6.0.0, 5.0.4, 4.0.7 and 3.0.14, when processing an op_slice network packet, the server passes an unprepared structure containing a null pointer to the SDL_info() function, resulting in a null pointer dereference and server crash. An unauthenticated attacker can trigger this by sending a crafted packet to the server port. This issue has been fixed in versions 6.0.0, 5.0.4, 4.0.7 and 3.0.14.
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Affected products
2cpe:2.3:a:firebirdsql:firebird:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:firebirdsql:firebird:*:*:*:*:*:*:*:*range: <3.0.14
- (no CPE)range: <6.0.0, <5.0.4, <4.0.7, <3.0.14
Patches
Vulnerability mechanics
References
4- github.com/FirebirdSQL/firebird/security/advisories/GHSA-9884-9qm3-hqchnvdExploitVendor Advisory
- github.com/FirebirdSQL/firebird/releases/tag/v3.0.14nvdRelease Notes
- github.com/FirebirdSQL/firebird/releases/tag/v4.0.7nvdRelease Notes
- github.com/FirebirdSQL/firebird/releases/tag/v5.0.4nvdRelease Notes
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