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Description

FTP Navigator 8.03 contains a denial of service vulnerability that allows attackers to crash the application by overwriting Structured Exception Handler (SEH) with malicious input. Attackers can generate a payload of 4108 'A' characters followed by 4 'B' characters and 40 'C' characters to trigger a program crash when pasted into the custom command input.

PUBLISHED Reserved 2026-02-12 | Published 2026-02-12 | Updated 2026-02-13 | 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

Stack-based Buffer Overflow

Product status

8.03
affected

Credits

Chris Inzinga finder

References

www.exploit-db.com/exploits/47794 (ExploitDB-47794) exploit

www.internet-soft.com/ (Vendor Homepage) product

www.vulncheck.com/...or-custom-command-denial-of-service-seh (VulnCheck Advisory: FTP Navigator 8.03 - 'Custom Command' Denial of Service (SEH)) third-party-advisory

cve.org (CVE-2019-25329)

nvd.nist.gov (CVE-2019-25329)

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