What’s Vulnerable › Vulnerabilities

CVE-1999-1568

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 1999-01-01 · updated 2026-06-16
• Weakness: CWE-193

Description

Off-by-one error in NcFTPd FTP server before 2.4.1 allows a remote attacker to cause a denial of service (crash) via a long PORT command.

Affected products

• Ncftpd Server: before 2.4.1 — fixed in 2.4.1

How to fix

Upgrade to a fixed version: Ncftpd Server 2.4.1. Check the vendor advisory for mitigations.

References

• http://marc.info/?l=bugtraq&m=91981352617720&w=2
• http://www.securityfocus.com/archive/1/12699
• https://exchange.xforce.ibmcloud.com/vulnerabilities/1833
• http://marc.info/?l=bugtraq&m=91981352617720&w=2
• http://www.securityfocus.com/archive/1/12699
• https://exchange.xforce.ibmcloud.com/vulnerabilities/1833

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