Is CVE-2006-6660 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2006-6660, but active exploitation has not been confirmed.

Can CVE-2006-6660 be exploited remotely?

Yes. CVE-2006-6660 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2006-6660?

CVE-2006-6660 has a CVSS score of 4.3 (MEDIUM).

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MEDIUMPOC

CVE-2006-6660

NVD-CWE-OtherPublished: December 20, 2006· Updated: Jun 16, 2026

4.3

CVSS v3.1

Official Description

The nodeType function in KDE libkhtml 4.2.0 and earlier, as used by Konquerer, KMail, and other programs, allows remote attackers to cause a denial of service (crash) via malformed HTML tags, possibly involving a COL SPAN tag embedded in a RANGE tag.

NVD Source

Technical Analysis

CVE-2006-6660 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-2006-6660. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.