Is CVE-2002-1911 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2002-1911, but active exploitation has not been confirmed.

Can CVE-2002-1911 be exploited remotely?

Yes. CVE-2002-1911 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2002-1911?

CVE-2002-1911 has a CVSS score of 5.0 (MEDIUM).

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MEDIUMPOC

CVE-2002-1911

NVD-CWE-OtherPublished: December 31, 2002· Updated: Jun 16, 2026

5.0

CVSS v3.1

Official Description

ZoneAlarm Pro 3.0 and 3.1, when configured to block all traffic, allows remote attackers to cause a denial of service (CPU and memory consumption) via a large number of SYN packets (SYN flood). NOTE: the vendor was not able to reproduce the issue.

NVD Source

Technical Analysis

CVE-2002-1911 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-2002-1911. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.