Security readout for executives and security teams
FTP Navigator 8.03 has a memory corruption flaw that can allow code execution. Public proof-of-concept exploit references exist, but the provided sources do not show active exploitation. Organizations should treat any remaining installations as high risk, especially because the sources do not name a vendor patch. Exposure is likely limited to systems where FTP Navigator 8.03 is installed. Risk is highest on user workstations or servers where the application is used to handle FTP workflows. The sources do not identify other affected versions. Prioritize discovery and removal or replacement of FTP Navigator 8.03. The business urgency comes from code execution impact and public exploit availability, not confirmed active exploitation. Systems running this legacy client should not be accepted as unmanaged risk. Mitigation focus: Inventory endpoints for FTP Navigator 8.03.; Check the vendor site and advisory sources for official update guidance.; If no fix is available, remove or replace the software..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CWE-121: Exact CWE lookup
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Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-25321 mapping review
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Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-47812CVE reference · exploit
- ExploitDB-47894CVE reference · exploit
- VulnCheck Advisory: FTP Navigator 8.03 - Stack Overflow (SEH)CVE reference · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Stack-based Buffer Overflow
Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
