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Cve-2026-33337

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critical advisory

Firebird Database Server Slice Packet Deserialization Buffer Overflow

Firebird versions before 5.0.4, 4.0.7, and 3.0.14 are vulnerable to a buffer overflow in the xdr_datum() function during slice packet deserialization, enabling unauthenticated attackers to cause a crash or potentially achieve arbitrary code execution by sending a malicious packet.

cve-2026-33337 firebird buffer-overflow denial-of-service
2r 2t 1c