CVE-2019-25321
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductInternet-soft Ftp Navigator
PublishedFeb 12, 2026
First seenFeb 12, 2026
Weakness typeCWE-121CWE-121
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| internet-soft ftp_navigator | v ≤ 8.03 | — |
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