CVE-2026-34232 — Firebird: DoS via `op_response` packet from client
Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, the xdr_status_vector() function does not handle the isc_arg_cstr…
Published: 2026-04-17 · CVSS: 7.5 · CVSS 3.1
Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, the xdr_status_vector() function does not handle the isc_arg_cstring type when decoding an op_response packet, causing a server crash when one is encountered in the status vector. An unauthenticated attacker can exploit this by sending a crafted op_response packet to the server. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7