Is CVE-2010-4321 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2010-4321, but active exploitation has not been confirmed.

Can CVE-2010-4321 be exploited remotely?

Yes. CVE-2010-4321 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2010-4321?

CVE-2010-4321 has a CVSS score of 9.3 (CRITICAL).

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CRITICALPOC

CVE-2010-4321

CWE-119Published: December 30, 2010· Updated: Jun 16, 2026

9.3

CVSS v3.1

Official Description

Stack-based buffer overflow in an ActiveX control in ienipp.ocx in Novell iPrint Client 5.52 allows remote attackers to execute arbitrary code via a long argument to (1) the GetDriverSettings2 method, as reachable by (2) the GetDriverSettings method.

NVD Source

Technical Analysis

CVE-2010-4321 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-2010-4321. 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.