CVE-2026-28224
HIGH
MEDIUM
Priority: 0.04
BB Relevance:
76/100
Published: 2026-04-17
Modified: 2026-10-26
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
Unchanged
C:
None
I:
Low
A:
High
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.
Weakness Classification (1)
Affected Software (3)
| Vendor | Product | Version |
|---|---|---|
| firebirdsql | firebird | < 3.0.14 |
| firebirdsql | firebird | 4.0.0 – 4.0.7 |
| firebirdsql | firebird | 5.0.0 – 5.0.4 |
References & Advisories (4)
Release Notes
Release Notes
Release Notes
Exploit
Vendor Advisory