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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.

PUBLISHED Reserved 2026-02-25 | Published 2026-04-17 | Updated 2026-04-20 | Assigner GitHub_M




HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-476: NULL Pointer Dereference

Product status

< 3.0.14
affected

>= 4.0.0, < 4.0.7
affected

>= 5.0.0, < 5.0.4
affected

References

github.com/...rebird/security/advisories/GHSA-9884-9qm3-hqch

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

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

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

cve.org (CVE-2026-28212)

nvd.nist.gov (CVE-2026-28212)

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