CVE-2002-1911

Exp

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.

Published: 2002-12-31 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2002-1911 is rated High Exploit Risk (62/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.13%). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2002-1911

EDB-ID Source Kind Published Link
21943 exploit_db edb 2002-10-16 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2002-1911

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 6.28% 3.13% -3.15%
2 2025-08-13 4.89% 6.28% +1.39%
3 2025-07-27 — 4.89% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2002-1911

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2002-1911

Affected software / configurations for CVE-2002-1911

Vendor Product Version Raw CPE
zonelabs zonealarm 3.0 cpe:2.3:a:zonelabs:zonealarm:3.0:*:pro:*:*:*:*:*
zonelabs zonealarm 3.1 cpe:2.3:a:zonelabs:zonealarm:3.1:*:pro:*:*:*:*:*

References for CVE-2002-1911

cvelogic Threat Intelligence