Is CVE-2009-4661 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2009-4661, but active exploitation has not been confirmed.

Can CVE-2009-4661 be exploited remotely?

Yes. CVE-2009-4661 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2009-4661?

CVE-2009-4661 has a CVSS score of 4.3 (MEDIUM).

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MEDIUMPOC

CVE-2009-4661

CWE-119Published: March 3, 2010· Updated: Jun 16, 2026

4.3

CVSS v3.1

Official Description

Multiple buffer overflows in BigAnt Server 2.50 SP6 and earlier allow user-assisted remote attackers to cause a denial of service (application crash) via a crafted ZIP file that is not properly handled when the victim uses the (1) Update or (2) Plug-In console menu item.

NVD Source

Technical Analysis

CVE-2009-4661 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2009-4661. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.