CVE-2026-28224

8.2 HIGH
Published: April 17, 2026 Modified: April 24, 2026
View on NVD

Description

Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, when the server receives an op_crypt_key_callback packet without prior authentication, the port_server_crypt_callback handler is not initialized, resulting in a null pointer dereference and server crash. An unauthenticated attacker who knows only the server's IP and port can exploit this to crash the server. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/FirebirdSQL/firebird/releases/tag/v3.0.14
Source: security-advisories@github.com
Release Notes
https://github.com/FirebirdSQL/firebird/releases/tag/v4.0.7
Source: security-advisories@github.com
Release Notes
https://github.com/FirebirdSQL/firebird/releases/tag/v5.0.4
Source: security-advisories@github.com
Release Notes
https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-xrcw-wpjx-pr95
Source: security-advisories@github.com
Exploit Vendor Advisory
https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-xrcw-wpjx-pr95
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit Vendor Advisory

5 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.2 / 10.0
EPSS (Exploit Probability)
0.3%
53th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

firebirdsql