Is CVE-2012-3039 actively exploited?

No active exploitation of CVE-2012-3039 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2012-3039 be exploited remotely?

Yes. CVE-2012-3039 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2012-3039?

CVE-2012-3039 has a CVSS score of 7.1 (HIGH).

HOME VULNERABILITIESCVE-2012-3039

HIGH

CVE-2012-3039

CWE-310Published: August 9, 2013· Updated: Jun 16, 2026

7.1

CVSS v3.1

Official Description

Moxa OnCell Gateway G3111, G3151, G3211, and G3251 devices with firmware before 1.4 do not use a sufficient source of entropy for SSH and SSL keys, which makes it easier for remote attackers to obtain access by leveraging knowledge of a key from a product installation elsewhere.

NVD Source

Technical Analysis

CVE-2012-3039 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.