CVE-2009-2620

src/remote/server.cpp in fbserver.exe in Firebird SQL 1.5 before 1.5.6, 2.0 before 2.0.6, 2.1 before 2.1.3, and 2.5 before 2.5 Beta 2 allows remote attackers to cause a denial of service (daemon crash) via a malformed op_connect_request message that triggers an infinite loop or NULL pointer dereference.

Published Oct 15, 2025

http://tracker.firebirdsql.org/browse/CORE-2563 https://bugzilla.redhat.com/show_bug.cgi?id=514463

CVSS ScoreMedium

5.0

Ecosystem	Package	Version

Ecosystem	Package	Version

Vulnerabilities

CVE-2009-2620

src/remote/server.cpp in fbserver.exe in Firebird SQL 1.5 before 1.5.6, 2.0 before 2.0.6, 2.1 before 2.1.3, and 2.5 before 2.5 Beta 2 allows remote attackers to cause a denial of service (daemon crash) via a malformed op_connect_request message that triggers an infinite loop or NULL pointer dereference.

Published Oct 15, 2025

http://tracker.firebirdsql.org/browse/CORE-2563 https://bugzilla.redhat.com/show_bug.cgi?id=514463

CVSS ScoreMedium

5.0

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Ecosystem	Package	Version

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CVE-2009-2620

CVE-2009-2620

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