CVE-2002-1978

IPFilter 3.1.1 through 3.4.28 allows remote attackers to bypass firewall rules by sending a PASV command string as the argument of another command to an FTP server, which generates a response that contains the string, causing IPFilter to treat the response as if it were a legitimate PASV command from the server.

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-2002-1978 is rated Moderate Risk (58.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.01%). EPSS rose +1.14% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2002-1978

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 0.86% 2.01% +1.14%
2 2025-08-15 0.97% 0.86% -0.10%
3 2025-03-30 — 0.97% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2002-1978

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/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:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2002-1978

Affected software / configurations for CVE-2002-1978

Vendor Product Version Raw CPE
darren_reed ipfilter 3.1.1 cpe:2.3:a:darren_reed:ipfilter:3.1.1:*:*:*:*:*:*:*
darren_reed ipfilter 3.1.2 cpe:2.3:a:darren_reed:ipfilter:3.1.2:*:*:*:*:*:*:*
darren_reed ipfilter 3.1.3 cpe:2.3:a:darren_reed:ipfilter:3.1.3:*:*:*:*:*:*:*
darren_reed ipfilter 3.1.4 cpe:2.3:a:darren_reed:ipfilter:3.1.4:*:*:*:*:*:*:*
darren_reed ipfilter 3.1.5 cpe:2.3:a:darren_reed:ipfilter:3.1.5:*:*:*:*:*:*:*
darren_reed ipfilter 3.1.6 cpe:2.3:a:darren_reed:ipfilter:3.1.6:*:*:*:*:*:*:*
darren_reed ipfilter 3.1.7 cpe:2.3:a:darren_reed:ipfilter:3.1.7:*:*:*:*:*:*:*
darren_reed ipfilter 3.1.8 cpe:2.3:a:darren_reed:ipfilter:3.1.8:*:*:*:*:*:*:*
darren_reed ipfilter 3.1.9 cpe:2.3:a:darren_reed:ipfilter:3.1.9:*:*:*:*:*:*:*
darren_reed ipfilter 3.1.10 cpe:2.3:a:darren_reed:ipfilter:3.1.10:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.1 cpe:2.3:a:darren_reed:ipfilter:3.2.1:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.2 cpe:2.3:a:darren_reed:ipfilter:3.2.2:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.3 cpe:2.3:a:darren_reed:ipfilter:3.2.3:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.4 cpe:2.3:a:darren_reed:ipfilter:3.2.4:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.5 cpe:2.3:a:darren_reed:ipfilter:3.2.5:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.6 cpe:2.3:a:darren_reed:ipfilter:3.2.6:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.7 cpe:2.3:a:darren_reed:ipfilter:3.2.7:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.8 cpe:2.3:a:darren_reed:ipfilter:3.2.8:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.9 cpe:2.3:a:darren_reed:ipfilter:3.2.9:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.10 cpe:2.3:a:darren_reed:ipfilter:3.2.10:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.11 cpe:2.3:a:darren_reed:ipfilter:3.2.11:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.12 cpe:2.3:a:darren_reed:ipfilter:3.2.12:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.13 cpe:2.3:a:darren_reed:ipfilter:3.2.13:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.14 cpe:2.3:a:darren_reed:ipfilter:3.2.14:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.15 cpe:2.3:a:darren_reed:ipfilter:3.2.15:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.16 cpe:2.3:a:darren_reed:ipfilter:3.2.16:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.17 cpe:2.3:a:darren_reed:ipfilter:3.2.17:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.18 cpe:2.3:a:darren_reed:ipfilter:3.2.18:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.19 cpe:2.3:a:darren_reed:ipfilter:3.2.19:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.20 cpe:2.3:a:darren_reed:ipfilter:3.2.20:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.21 cpe:2.3:a:darren_reed:ipfilter:3.2.21:*:*:*:*:*:*:*
darren_reed ipfilter 3.2.22 cpe:2.3:a:darren_reed:ipfilter:3.2.22:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.1 cpe:2.3:a:darren_reed:ipfilter:3.3.1:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.2 cpe:2.3:a:darren_reed:ipfilter:3.3.2:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.3 cpe:2.3:a:darren_reed:ipfilter:3.3.3:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.4 cpe:2.3:a:darren_reed:ipfilter:3.3.4:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.5 cpe:2.3:a:darren_reed:ipfilter:3.3.5:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.6 cpe:2.3:a:darren_reed:ipfilter:3.3.6:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.7 cpe:2.3:a:darren_reed:ipfilter:3.3.7:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.8 cpe:2.3:a:darren_reed:ipfilter:3.3.8:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.9 cpe:2.3:a:darren_reed:ipfilter:3.3.9:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.10 cpe:2.3:a:darren_reed:ipfilter:3.3.10:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.11 cpe:2.3:a:darren_reed:ipfilter:3.3.11:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.12 cpe:2.3:a:darren_reed:ipfilter:3.3.12:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.13 cpe:2.3:a:darren_reed:ipfilter:3.3.13:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.14 cpe:2.3:a:darren_reed:ipfilter:3.3.14:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.15 cpe:2.3:a:darren_reed:ipfilter:3.3.15:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.16 cpe:2.3:a:darren_reed:ipfilter:3.3.16:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.17 cpe:2.3:a:darren_reed:ipfilter:3.3.17:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.18 cpe:2.3:a:darren_reed:ipfilter:3.3.18:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.19 cpe:2.3:a:darren_reed:ipfilter:3.3.19:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.20 cpe:2.3:a:darren_reed:ipfilter:3.3.20:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.21 cpe:2.3:a:darren_reed:ipfilter:3.3.21:*:*:*:*:*:*:*
darren_reed ipfilter 3.3.22 cpe:2.3:a:darren_reed:ipfilter:3.3.22:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.1 cpe:2.3:a:darren_reed:ipfilter:3.4.1:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.2 cpe:2.3:a:darren_reed:ipfilter:3.4.2:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.3 cpe:2.3:a:darren_reed:ipfilter:3.4.3:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.4 cpe:2.3:a:darren_reed:ipfilter:3.4.4:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.5 cpe:2.3:a:darren_reed:ipfilter:3.4.5:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.6 cpe:2.3:a:darren_reed:ipfilter:3.4.6:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.7 cpe:2.3:a:darren_reed:ipfilter:3.4.7:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.8 cpe:2.3:a:darren_reed:ipfilter:3.4.8:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.9 cpe:2.3:a:darren_reed:ipfilter:3.4.9:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.10 cpe:2.3:a:darren_reed:ipfilter:3.4.10:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.11 cpe:2.3:a:darren_reed:ipfilter:3.4.11:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.12 cpe:2.3:a:darren_reed:ipfilter:3.4.12:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.13 cpe:2.3:a:darren_reed:ipfilter:3.4.13:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.14 cpe:2.3:a:darren_reed:ipfilter:3.4.14:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.15 cpe:2.3:a:darren_reed:ipfilter:3.4.15:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.16 cpe:2.3:a:darren_reed:ipfilter:3.4.16:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.17 cpe:2.3:a:darren_reed:ipfilter:3.4.17:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.18 cpe:2.3:a:darren_reed:ipfilter:3.4.18:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.19 cpe:2.3:a:darren_reed:ipfilter:3.4.19:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.20 cpe:2.3:a:darren_reed:ipfilter:3.4.20:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.21 cpe:2.3:a:darren_reed:ipfilter:3.4.21:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.22 cpe:2.3:a:darren_reed:ipfilter:3.4.22:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.23 cpe:2.3:a:darren_reed:ipfilter:3.4.23:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.24 cpe:2.3:a:darren_reed:ipfilter:3.4.24:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.25 cpe:2.3:a:darren_reed:ipfilter:3.4.25:*:*:*:*:*:*:*
darren_reed ipfilter 3.4.26 cpe:2.3:a:darren_reed:ipfilter:3.4.26:*:*:*:*:*:*:*

References for CVE-2002-1978

cvelogic Threat Intelligence