{"answers":{"affected":"It affects 2 products.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25318 exists.","fix":"No fix has been published for CVE-2018-25318 yet. Limit exposure of the affected software until one is available.","what":"CVE-2018-25318 is a critical authentication bypass vulnerability in Tenda FH303/A300, published on 29 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-25318 and fix it if it is affected.\n\nWhat it is: CVE-2018-25318 is a critical authentication bypass vulnerability in Tenda FH303/A300, published on 29 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25318 exists.\n\nAffected product: Tenda FH303/A300. 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-2018-25318/ (Markdown: https://insights.sbomify.com/CVE-2018-25318/index.md)","id":"CVE-2018-25318","markdown":"https://insights.sbomify.com/CVE-2018-25318/index.md","name":"CVE-2018-25318","record":{"aliases":["GHSA-j5r6-25m9-65r7"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["data_modify","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Tenda router firmware","requires_auth":"none","summary":"Unauthenticated attackers can bypass authentication via weak cookie validation to modify DNS settings on Tenda routers, enabling traffic redirection.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"a300_firmware","vendor":"tenda"},{"product":"fh303_firmware","vendor":"tenda"}],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-290","name":"Authentication Bypass by Spoofing"}],"description":"Tenda FH303/A300 firmware V5.07.68_EN contains a session weakness vulnerability that allows unauthenticated attackers to modify DNS settings by exploiting insufficient cookie validation. Attackers can send GET requests to the /goform/AdvSetDns endpoint with a crafted admin cookie to change DNS servers and redirect user traffic to malicious sites.","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":"Tenda FH303/A300 V5.07.68_EN Cookie Session Weakness DNS Change","id":"CVE-2018-25318","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2018"},"n_packages":0,"n_references":2,"next":{"headline":"Redaxo CMS Addon MyEvents 2.2.1 SQL Injection via event_add.php","id":"CVE-2018-25319"},"packages":[],"prev":{"headline":"Tenda W3002R/A302/W309R V5.07.64_en Cookie Session Weakness DNS Change","id":"CVE-2018-25317"},"products":["FH303/A300"],"published":"2026-04-29","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":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-01","vendors":["Tenda"]},"summary":"Unauthenticated attackers can bypass authentication via weak cookie validation to modify DNS settings on Tenda routers, enabling traffic redirection.","url":"https://insights.sbomify.com/CVE-2018-25318/"}