Security readout for executives and security teams
Plain-English summary
CVE-2018-25252 affects FTP Voyager 16.2.0. A malformed saved site profile can crash the FTP Voyager application by overflowing the IP field. This is a local denial-of-service issue against the client application, not evidence of remote compromise of an FTP server.
Executive priority
Treat as a moderate endpoint availability issue. Prioritize if FTP Voyager 16.2.0 is used on operationally important workstations or by teams relying on FTP transfers. It is lower urgency than remotely exploitable server flaws.
Technical view
The issue is reported as CWE-787 out-of-bounds write in FTP Voyager 16.2.0. The CVSS 4.0 vector is local, low complexity, no privileges, no user interaction, with high vulnerable-system availability impact. Public references include ExploitDB and VulnCheck, but the sources do not show CISA KEV listing or active exploitation.
Likely exposure
Exposure is likely limited to endpoints where Serv-U FTP Voyager 16.2.0 is installed and site profiles can be created or modified locally. Server-side Serv-U products are not identified as affected in the provided sources.
Exploitation context
The cited material describes a local application crash using malformed site profile data. A public ExploitDB reference exists, but the provided sources do not establish real-world exploitation or a remote attack path.
Researcher notes
Evidence is narrow and version-specific. The source bundle names FTP Voyager 16.2.0 only. No patch version is provided in the supplied sources. Avoid broad conclusions about other Serv-U products without additional vendor confirmation.
Mitigation direction
- Identify endpoints running FTP Voyager 16.2.0.
- Check Serv-U guidance for fixed versions or vendor-recommended mitigation.
- Avoid importing or using untrusted FTP Voyager site profiles.
- Limit local access to systems running the affected client.
- Consider removing the application where it is no longer required.
Validation and detection
- Inventory installed FTP Voyager versions across managed endpoints.
- Confirm whether version 16.2.0 is present.
- Review software management records for vendor updates or replacement.
- Check whether users handle externally supplied site profiles.
- Monitor endpoint crash reports for repeated FTP Voyager failures.
Public sources used
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
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-787: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2018-25252 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.9 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
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:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
6.9MediumVector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-45527CVE reference · exploit
- Official Product HomepageCVE reference · product
- Product ReferenceCVE reference · product
- VulnCheck Advisory: FTP Voyager 16.2.0 Denial of Service via Malformed Site ProfileCVE 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.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.