CVE-2020-37155

Core FTP Lite 1.3 - Denial of Service (PoC)

CVSS 6.7 MEDIUMEPSS 0.4%CWE-120

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.7EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

06 Feb 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected products

Core FTP · Core FTP Lite

References

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