CVE-2019-25329

HighPublic PoC

Published: 12 February 2026

Published

12 February 2026

Modified

03 March 2026

KEV Added

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Patch

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CVSS Score 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Score 0.0004 14.0th percentile

Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2019-25329 is a high-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Internet-Soft Ftp Navigator. Its CVSS base score is 7.5 (High).

Operationally, ranked at the 14.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

NVD 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.

Deeper analysisAI

CVE-2019-25329 is a denial of service vulnerability in FTP Navigator version 8.03. The issue enables attackers to crash the application by overwriting the Structured Exception Handler (SEH) with malicious input provided via the custom command input field. A specific payload of 4108 'A' characters followed by 4 'B' characters and 40 'C' characters triggers the crash when pasted into this input. The vulnerability is associated with CWE-121 and carries a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H), indicating high availability impact with no confidentiality or integrity effects.

Remote attackers can exploit this vulnerability without privileges or user interaction, requiring only low attack complexity over the network. By delivering the crafted payload to the custom command input, they achieve a complete denial of service, causing the FTP Navigator application to crash and rendering it unavailable to the user.

Advisories and related resources include the vendor site at http://www.internet-soft.com/, an Exploit-DB entry with a proof-of-concept at https://www.exploit-db.com/exploits/47794, and a VulnCheck advisory at https://www.vulncheck.com/advisories/ftp-navigator-custom-command-denial-of-service-seh. No specific patches or mitigations are detailed in the CVE description.