CVE-2026-28224

HIGH EPSS 36.9%
Published Apr 17, 20262mo ago · Modified Jun 17, 20262w ago
8.2 CVSS 3.1
High
Find Similar
Published Apr 17, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
8.2
Exploitability
3.9
Impact
4.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Low
Availability High

Threat Intelligence

EPSS Exploit Probability
36.9% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 3

VendorProductVersionRange
firebirdsqlfirebird* <3.0.14
firebirdsqlfirebird*≥4.0.0  –  <4.0.7
firebirdsqlfirebird*≥5.0.0  –  <5.0.4

References 4

  • github.com https://github.com/FirebirdSQL/firebird/releases/tag/v3.0.14
    Release Notes
  • github.com https://github.com/FirebirdSQL/firebird/releases/tag/v4.0.7
    Release Notes
  • github.com https://github.com/FirebirdSQL/firebird/releases/tag/v5.0.4
    Release Notes
  • github.com https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-xrcw-wpjx-pr95
    ExploitVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.