CVE-2018-25235
CVE-2018-25235 is a medium-severity vulnerability in Networkactiv Web Server with a CVSS 3.x base score of 6.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: Medium (CVSS 3.x base score 6.2)
- CVSS v4: 6.9
- EPSS exploit prediction: 0% (13th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2018-21727
- Weakness: CWE-787
- Affected product: Networkactiv Web Server
- Published:
- Last modified:
Description
NetworkActiv Web Server 4.0 contains a buffer overflow vulnerability in the username field of the Security options that allows local attackers to crash the application by supplying an excessively long string. Attackers can trigger a denial of service by entering a crafted username value exceeding the expected buffer size through the Set username interface.
Frequently asked questions
- What is CVE-2018-25235?
- NetworkActiv Web Server 4.0 contains a buffer overflow vulnerability in the username field of the Security options that allows local attackers to crash the application by supplying an excessively long string. Attackers can trigger a denial of service by entering a crafted username value exceeding the expected buffer size through the Set username interface.
- How severe is CVE-2018-25235?
- CVE-2018-25235 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2018-25235 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-25235?
- CVE-2018-25235 affects Networkactiv Web Server. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-25235?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2018-25235 have an EU (EUVD) identifier?
- Yes. CVE-2018-25235 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2018-21727.
- When was CVE-2018-25235 published?
- CVE-2018-25235 was published on 2026-03-30 and last updated on 2026-06-17.
References
- https://www.exploit-db.com/exploits/45302
- https://www.networkactiv.com/Dev/
- https://www.networkactiv.com/WebServer.html
- https://www.vulncheck.com/advisories/networkactiv-web-server-username-field-buffer-overflow-dos
Affected products (1)
- cpe:2.3:a:networkactiv:web_server:*:*:*:*:*:*:*:*
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