{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25235 exists.","fix":"No fix has been published for CVE-2018-25235 yet. Limit exposure of the affected software until one is available.","what":"CVE-2018-25235 is a medium-severity memory corruption vulnerability in NetworkActiv Web Server, published on 30 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-25235 and fix it if it is affected.\n\nWhat it is: CVE-2018-25235 is a medium-severity memory corruption vulnerability in NetworkActiv Web Server, published on 30 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25235 exists.\n\nAffected product: NetworkActiv Web Server. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2018-25235/ (Markdown: https://insights.sbomify.com/CVE-2018-25235/index.md)","id":"CVE-2018-25235","markdown":"https://insights.sbomify.com/CVE-2018-25235/index.md","name":"CVE-2018-25235","record":{"aliases":["GHSA-x4g8-cm9x-f937"],"analysis":{"component_type":"server_software","fix_type":"no_fix_stated","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Web Server","requires_auth":"none","summary":"Local attackers can crash NetworkActiv Web Server by supplying an excessively long username string, causing a denial of service.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"web_server","vendor":"networkactiv"}],"cvss":{"score":6.9,"severity":"medium","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"NetworkActiv Web Server 4.0 Username Field Buffer Overflow DoS","id":"CVE-2018-25235","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2018"},"n_packages":0,"n_references":4,"next":{"headline":"Hirschmann HiOS HiSecOS Authentication Bypass via HTTP Management","id":"CVE-2018-25236"},"packages":[],"prev":{"headline":"SmartFTP Client 9.0.2615.0 Denial of Service via Host Field","id":"CVE-2018-25234"},"products":["NetworkActiv Web Server"],"published":"2026-03-30","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-30","vendors":["Networkactiv"]},"summary":"Local attackers can crash NetworkActiv Web Server by supplying an excessively long username string, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2018-25235/"}