{"id":"CVE-2018-25318","title":"Tenda FH303/A300 V5.07.68_EN Cookie Session Weakness DNS Change","summary":"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/Adv…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-290"],"vendor":"Tenda","product":"FH303/A300","affected":["FH303/A300 5.07.68"],"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"total","timestamp":"2026-04-30T13:13:33.905364Z"},"exploitAvailable":true,"published":"2026-04-29","updated":"2026-10-01","sourceUpdated":"2026-10-01T21:44:52.133Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2018-25318","references":[{"url":"https://www.exploit-db.com/exploits/44381","label":"ExploitDB-44381"},{"url":"https://www.vulncheck.com/advisories/tenda-fh303-a300-68-en-cookie-session-weakness-dns-change","label":"VulnCheck Advisory: Tenda FH303/A300 V5.07.68_EN Cookie Session Weakness DNS Change"}],"tags":["cve.org","exploit-available"],"epss":0.00651,"epssPercentile":0.49304,"ingestedAt":"2026-10-01T23:03:32.844Z","slug":"CVE-2018-25318","body":"## Overview\n\nTenda 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.\n\n## Affected\n\n- `FH303/A300 5.07.68`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":66,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}