Security readout for executives and security teams
Plain-English summary
Easy File Sharing Web Server 7.2 has a local buffer overflow in username handling. A person with local access could cause the application to run arbitrary code. This is high risk for any remaining installations, especially on shared or poorly controlled servers.
Executive priority
Prioritize remediation for any remaining Easy File Sharing Web Server 7.2 deployments. The vulnerability can lead to full code execution, but the cited evidence describes local rather than remote exploitation. Business urgency depends on whether untrusted users can access the host or account-management function.
Technical view
CVE-2019-25466 is a CWE-787 out-of-bounds write affecting Easy File Sharing Web Server 7.2. The issue is described as a local Structured Exception Handling overflow triggered through a malicious username during user account creation, allowing arbitrary code execution. CVSS v4.0 is 8.6 with local attack vector and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to systems still running Easy File Sharing Web Server 7.2. The source data describes local exploitation, so risk is highest where untrusted users have local access or can influence application user creation.
Exploitation context
A public Exploit-DB reference is listed, indicating exploit details are publicly available. The provided sources do not show CISA KEV listing or confirmed active exploitation. Treat this as exploitable but not proven actively exploited based on the supplied evidence.
Researcher notes
The key research points are version confirmation, local attack surface, and account-creation control. Public exploit material exists, but the supplied bundle does not identify a vendor patch or active exploitation. Avoid assuming network reachability unless separately confirmed in your environment.
Mitigation direction
- Inventory systems for Easy File Sharing Web Server 7.2.
- Check vendor or trusted advisory guidance for fixed versions or retirement recommendations.
- Upgrade, replace, or remove affected installations where feasible.
- Restrict local access to trusted administrators only.
- Limit who can create or modify application user accounts.
Validation and detection
- Confirm whether Easy File Sharing Web Server 7.2 is installed.
- Verify the application version on each identified host.
- Review whether untrusted users have local access to affected hosts.
- Check whether account creation is restricted to trusted administrators.
- Review logs for crashes during user account creation.
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 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-2019-25466 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
- High
- CVSS
- 8.6 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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:H/VI:H/VA:H/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
8.6HighVector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-47411CVE reference · exploit
- VulnCheck Advisory: Easy File Sharing Web Server 7.2 Local SEH OverflowCVE 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.