CVE-2002-1978: n/a vulnerability

CVE-2002-1978: IPFilter 3.1.1 through 3.4.28 allows remote attackers to bypass firewall rules by sending a PASV command st...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 03:43 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2002-1978 is an old IPFilter firewall bypass involving FTP traffic. A remote attacker could make IPFilter misread part of an FTP server response as a legitimate passive-mode command, potentially opening traffic that firewall rules intended to block. Exposure is likely limited to environments still running IPFilter 3.1.1 through 3.4.28 and allowing FTP traffic through rules inspected by IPFilter. Modern environments are less likely to be affected, but legacy BSD/Unix firewall deployments should be checked. Treat this as high priority only for legacy environments using affected IPFilter versions with FTP exposure. For organizations without IPFilter or FTP-dependent firewall rules, business urgency is low after verification. Mitigation focus: Inventory systems using IPFilter and record exact versions.; Prioritize replacement or update of IPFilter 3.1.1 through 3.4.28.; Review CERT and vendor advisories for supported remediation guidance..

Prepared: Jul 11, 2026, 18:18 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 28, 2005, 04:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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1Source links

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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