CVE-2009-2620: n/a vulnerability

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,...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 05:59 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Firebird SQL server availability flaw. A specially malformed connection request can crash fbserver.exe or drive it into a loop, interrupting database service. The supplied sources do not describe data theft or code execution, but affected legacy database servers can suffer service outages. Exposure is most likely in legacy applications still running older Firebird SQL servers, especially where the database listener is reachable from untrusted networks. Modern or upgraded Firebird deployments are not shown as affected in the provided sources. Prioritize remediation for internet-facing or business-critical Firebird servers. The main risk is database downtime, not confirmed compromise, but the public exploit reference raises urgency for legacy exposed systems. Mitigation focus: Upgrade Firebird SQL to a fixed or later supported release.; Restrict Firebird database access to trusted application hosts only.; Block direct internet access to the database listener..

Prepared: Jun 28, 2026, 10:26 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2009-2620 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jul 29, 2009, 17:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
FEDORA-2009-8317CVE reference · vendor-advisory, x_refsource_FEDORA
FEDORA-2009-8340CVE reference · vendor-advisory, x_refsource_FEDORA
https://bugzilla.redhat.com/show_bug.cgi?id=514463CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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