Is CVE-2002-0140 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2002-0140, but active exploitation has not been confirmed.

Can CVE-2002-0140 be exploited remotely?

Yes. CVE-2002-0140 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2002-0140?

CVE-2002-0140 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2002-0140

HIGHPOC

CVE-2002-0140

NVD-CWE-OtherPublished: March 25, 2002· Updated: Jun 16, 2026

7.5

CVSS v3.1

Official Description

Domain Name Relay Daemon (dnrd) 2.10 and earlier allows remote malicious DNS sites to cause a denial of service and possibly execute arbitrary code via a long or malformed DNS reply, which is not handled properly by parse_query, get_objectname, and possibly other functions.

NVD Source

Technical Analysis

CVE-2002-0140 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-2002-0140. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.