Is CVE-2013-4147 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2013-4147, but active exploitation has not been confirmed.

Can CVE-2013-4147 be exploited remotely?

Yes. CVE-2013-4147 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2013-4147?

CVE-2013-4147 has a CVSS score of 7.5 (HIGH).

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HIGHPOC

CVE-2013-4147

CWE-134Published: August 9, 2013· Updated: Jun 16, 2026

7.5

CVSS v3.1

Official Description

Multiple format string vulnerabilities in Yet Another Radius Daemon (YARD RADIUS) 1.1.2 allow context-dependent attackers to cause a denial of service (crash) or possibly execute arbitrary code via format string specifiers in a request in the (1) log_msg function in log.c or (2) version or (3) build_version function in version.c.

NVD Source

Technical Analysis

CVE-2013-4147 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-2013-4147. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.