CVE-2026-28212

HIGH7.5

Firebird has potential server crash via null pointer dereference when processing op_slice packet

Published Apr 17, 2026

Modified 1 months ago

Details

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.

References

WEB

https://github.com/FirebirdSQL/firebird/releases/tag/v3.0.14

WEB

https://github.com/FirebirdSQL/firebird/releases/tag/v4.0.7

WEB

https://github.com/FirebirdSQL/firebird/releases/tag/v5.0.4

WEB

https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-9884-9qm3-hqch

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-28212

CVSS Analysis