How severe is CVE-2002-1911?

CVE-2002-1911 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2002-1911 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-1911?

CVE-2002-1911 primarily affects Zonelabs Zonealarm. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2002-1911?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2002-1911 published?

CVE-2002-1911 was published on 2002-12-31 and last updated on 2026-06-16.

CVE-2002-1911

CVE-2002-1911 is a medium-severity vulnerability in Zonelabs Zonealarm with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Zonelabs Zonealarm
Published: 2002-12-31
Last modified: 2026-06-16

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.

Frequently asked questions

What is CVE-2002-1911?: 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.
How severe is CVE-2002-1911?: CVE-2002-1911 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2002-1911 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-1911?: CVE-2002-1911 primarily affects Zonelabs Zonealarm. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-1911?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2002-1911 published?: CVE-2002-1911 was published on 2002-12-31 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:zonelabs:zonealarm:3.0:*:pro:*:*:*:*:*
cpe:2.3:a:zonelabs:zonealarm:3.1:*:pro:*:*:*:*:*

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