Security readout for executives and security teams
Plain-English summary
This issue can let someone with local access to NetworkActiv Web Server’s security settings crash the application by entering an overly long username. The business impact is service downtime, not confirmed data theft or remote compromise. Public exploit information exists, but the provided sources do not show active exploitation.
Executive priority
Treat as a targeted availability risk. Prioritize review if this software supports business services or runs on shared servers. It is less urgent than remotely exploitable critical flaws, but pre-alpha software in production should be addressed promptly.
Technical view
CVE-2018-25235 is a CWE-787 buffer overflow in the username field of NetworkActiv Web Server 4.0 Pre-Alpha-3.7.2 Security options. The reported impact is denial of service through application crash. CVSS v4.0 score is 6.9, with local attack vector and high vulnerable-system availability impact.
Likely exposure
Exposure appears limited to systems running NetworkActiv Web Server 4.0 Pre-Alpha-3.7.2 where an attacker can access the local configuration interface. Internet-facing exposure is not indicated by the provided sources.
Exploitation context
Exploit-DB is referenced, indicating public exploit information exists. The CVE is not listed as KEV in the provided bundle, and no cited source states active exploitation in the wild.
Researcher notes
The record describes a local denial-of-service condition, not remote code execution. Sources do not identify a patch, supported version, or active exploitation. Avoid assuming broader exposure beyond the named product and version.
Mitigation direction
- Inventory systems for NetworkActiv Web Server 4.0 Pre-Alpha-3.7.2.
- Restrict local access to the server host and configuration interface.
- Check NetworkActiv and VulnCheck guidance for fixed versions or vendor workarounds.
- Consider removing or replacing unsupported pre-alpha software in production environments.
- Monitor for unexpected web server crashes or repeated configuration changes.
Validation and detection
- Confirm installed NetworkActiv Web Server version on relevant hosts.
- Review who has local access to the application configuration interface.
- Check application and system logs for crashes around configuration activity.
- Verify whether vendor guidance identifies an available update or workaround.
- Document compensating controls if no vendor fix is available.
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-2018-25235 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-45302CVE reference · exploit
- Official Product HomepageCVE reference · product
- Product ReferenceCVE reference · product
- VulnCheck Advisory: NetworkActiv Web Server 4.0 Username Field Buffer Overflow DoSCVE 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.