CVE-2026-28212

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/FirebirdSQL/firebird/releases/tag/v3.0.14	Release Notes
https://github.com/FirebirdSQL/firebird/releases/tag/v4.0.7	Release Notes
https://github.com/FirebirdSQL/firebird/releases/tag/v5.0.4	Release Notes
https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-9884-9qm3-hqch	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:firebirdsql:firebird::::::::
	cpe:2.3:a:firebirdsql:firebird::::::::
	cpe:2.3:a:firebirdsql:firebird::::::::

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Firebird es un sistema de gestión de base de datos relacional de código abierto. En versiones anteriores a 6.0.0, 5.0.4, 4.0.7 y 3.0.14, al procesar un paquete de red op_slice, el servidor pasa una estructura no preparada que contiene un puntero nulo a la función SDL_info(), lo que resulta en una desreferencia de puntero nulo y un fallo del servidor. Un atacante no autenticado puede desencadenar esto enviando un paquete manipulado al puerto del servidor. Este problema ha sido solucionado en las versiones 6.0.0, 5.0.4, 4.0.7 y 3.0.14.

Information

Published : 2026-04-17 19:16

Updated : 2026-10-26 21:10

NVD link : CVE-2026-28212

Mitre link : CVE-2026-28212

CVE.ORG link : CVE-2026-28212

JSON object : View

Products Affected

firebirdsql

firebird

CWE

CWE-476

NULL Pointer Dereference

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