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Description

Core FTP LE 2.2 contains a denial of service vulnerability that allows attackers to crash the application by overwriting the account field with a large buffer. Attackers can create a text file with 20,000 repeated characters and paste it into the account field to cause the application to become unresponsive and require reinstallation.

PUBLISHED Reserved 2026-02-01 | Published 2026-02-06 | Updated 2026-02-17 | Assigner VulnCheck




MEDIUM: 6.7CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Product status

2.2 build 1947
affected

Credits

Ismael Nava finder

References

www.exploit-db.com/exploits/48137 (ExploitDB-48137) exploit

www.coreftp.com/ (Core FTP Vendor Homepage) product

www.coreftp.com/download.html (Core FTP Download Page) product

www.vulncheck.com/advisories/core-ftp-le-denial-of-service (VulnCheck Advisory: Core FTP LE 2.2 - Denial of Service) third-party-advisory

cve.org (CVE-2020-37107)

nvd.nist.gov (CVE-2020-37107)

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