CVE-2009-2620

Name: CVE-2009-2620
Creator: NVD / NIST
Published: 2009-07-29T17:30:01.28+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 8.63%

Last modified Jun 16, 2026

CVE-2009-2620 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 8.63% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

8.63%

94.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Firebirdsql	Firebird	>= 1.5, < 1.5.6
Firebirdsql	Firebird	>= 2.0.0, < 2.0.6
Firebirdsql	Firebird	>= 2.1, < 2.1.3
Firebirdsql	Firebird	2.5.0

References

http://tracker.firebirdsql.org/browse/CORE-2563Vendor Advisory
http://www.coresecurity.com/content/firebird-sql-dosExploit
http://www.exploit-db.com/exploits/9295Exploit
http://www.securityfocus.com/bid/35842Exploit, Patch
https://bugzilla.redhat.com/show_bug.cgi?id=514463Issue Tracking
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01341.htmlBroken Link
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01370.htmlBroken Link
http://tracker.firebirdsql.org/browse/CORE-2563Vendor Advisory
http://www.coresecurity.com/content/firebird-sql-dosExploit
http://www.exploit-db.com/exploits/9295Exploit
http://www.securityfocus.com/bid/35842Exploit, Patch
https://bugzilla.redhat.com/show_bug.cgi?id=514463Issue Tracking
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01341.htmlBroken Link
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01370.htmlBroken Link

Timeline

Published: Jul 29, 2009
Last Modified: Jun 16, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2009-2620?

How severe is CVE-2009-2620?

Severity scoring for CVE-2009-2620 is pending analysis. The EPSS model estimates a 8.63% probability of exploitation in the next 30 days.

How do I fix CVE-2009-2620?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-2620?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST