CVE-2025-54989: Firebirdsql Firebird

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

Firebird is a relational database. Prior to versions 3.0.13, 4.0.6, and 5.0.3, there is an XDR message parsing NULL pointer dereference denial-of-service vulnerability in Firebird. This specific flaw exists within the parsing of xdr message from client. It leads to NULL pointer dereference and DoS. This issue has been patched in versions 3.0.13, 4.0.6, and 5.0.3.

Affected products

• Firebirdsql Firebird: before 3.0.13 (fixed in 3.0.13); from 4.0.0, before 4.0.6 (fixed in 4.0.6); from 5.0.0, before 5.0.3 (fixed in 5.0.3)

Published 2025-08-15. Last modified 2026-06-17.