What’s Vulnerable › Vulnerabilities

CVE-2020-37155: Core FTP Lite 1.3 - Denial of Service (PoC)

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-07 · updated 2026-06-17
• Weakness: CWE-120

Description

Core FTP Lite 1.3 contains a buffer overflow vulnerability in the username input field that allows attackers to crash the application by supplying oversized input. Attackers can generate a 7000-byte payload of repeated 'A' characters to trigger an application crash without requiring additional interaction.

Affected products

• Core FTP Lite: 1.3c Build 1437

References

• http://www.coreftp.com/
• https://www.exploit-db.com/exploits/48100
• https://www.vulncheck.com/advisories/core-ftp-lite-denial-of-service-poc

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