FTP Navigator 8.03 - 'Custom Command' Denial of Service (SEH)
Priority HIGH 69CWE-121Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00498 42nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Internet-Soft | FTP Navigator | 8.03 | — | No fix listed | CNA |
- FTP Navigator VendorInternet-Soft Affected 8.03 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:internet-soft:ftp_navigator:*:*:*:*:*:*:*:* | up to 8.03 | Vulnerable | Internet-Soft |
- cpe:2.3:a:internet-soft:ftp_navigator:*:*:*:*:*:*:*:* Versions up to 8.03 Vulnerable ·Internet-Soft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-25329
- 2026-10-03 Alias added: GHSA-6qxf-3mq6-3g8x
References
Exploit 1
Other 1
More Internet-Soft Ftp Navigator vulnerabilities
- TI-2019-15375 FTP Navigator 8.03 - Stack Overflow (SEH) CVSS 4.0HIGH 8.4
Sources
- CVE-2019-25329 · CVE Program
- CVE-2019-25329 · NVD
- FIRST EPSS
- GHSA-6qxf-3mq6-3g8x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences