CVE-2026-28212

high

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.

References

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

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

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

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

Details

Source: Mitre, NVD

Published: 2026-04-17

Updated: 2026-04-17

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

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

Severity: High

EPSS

EPSS: 0.00038