Is CVE-2009-4643 actively exploited?

No active exploitation of CVE-2009-4643 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2009-4643 be exploited remotely?

Yes. CVE-2009-4643 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2009-4643?

CVE-2009-4643 has a CVSS score of 10.0 (CRITICAL).

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CRITICAL

CVE-2009-4643

CWE-119Published: February 15, 2010· Updated: Jun 16, 2026

10.0

CVSS v3.1

Official Description

Stack-based buffer overflow in dsInstallerService.dll in the Juniper Installer Service, as used in Juniper Odyssey Access Client 4.72.11421.0 and other products, allows remote attackers to execute arbitrary code via a long string in a malformed DSSETUPSERVICE_CMD_UNINSTALL command to the NeoterisSetupService named pipe.

NVD Source

Technical Analysis

CVE-2009-4643 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.

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