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Description

FTP Navigator 8.03 contains a stack overflow vulnerability that allows attackers to execute arbitrary code by overwriting Structured Exception Handler (SEH) registers. Attackers can craft a malicious payload that triggers a buffer overflow when pasted into the Custom Command textbox, enabling remote code execution and launching the calculator as proof of concept.

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




HIGH: 8.4CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

Stack-based Buffer Overflow

Product status

8.03
affected

Credits

boku finder

References

www.exploit-db.com/exploits/47812 (ExploitDB-47812) exploit

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

www.exploit-db.com/exploits/47794 (ExploitDB-47894) exploit

www.vulncheck.com/...sories/ftp-navigator-stack-overflow-seh (VulnCheck Advisory: FTP Navigator 8.03 - Stack Overflow (SEH)) third-party-advisory

cve.org (CVE-2019-25321)

nvd.nist.gov (CVE-2019-25321)

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