{"id":"CVE-2025-11091","title":"A security flaw has been discovered in Tenda AC21 up to 16.03.08.16","summary":"A security flaw has been discovered in Tenda AC21 up to 16.03.08.16. Affected by this vulnerability is the function sscanf of the file /goform/SetStaticRouteCfg. The manipulation of the argument list results in buffer overflow. The attac…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-119","CWE-120"],"vendor":"tenda","product":"ac21_firmware","affected":["ac21_firmware <= 16.03.08.16"],"published":"2025-09-28","updated":"2026-10-09","sourceUpdated":"2026-10-09T10:10:00.193","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-11091","references":[{"url":"https://github.com/maximdevere/CVE2/issues/2","label":"cna@vuldb.com"},{"url":"https://vuldb.com/?ctiid.326173","label":"cna@vuldb.com"},{"url":"https://vuldb.com/?id.326173","label":"cna@vuldb.com"},{"url":"https://vuldb.com/?submit.661806","label":"cna@vuldb.com"},{"url":"https://www.tenda.com.cn/","label":"cna@vuldb.com"},{"url":"https://github.com/maximdevere/CVE2/issues/2","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00736,"epssPercentile":0.53069,"ingestedAt":"2026-10-09T12:53:28.516Z","slug":"CVE-2025-11091","body":"## Overview\n\nA security flaw has been discovered in Tenda AC21 up to 16.03.08.16. Affected by this vulnerability is the function sscanf of the file /goform/SetStaticRouteCfg. The manipulation of the argument list results in buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be exploited.\n\n## Affected\n\n- `ac21_firmware <= 16.03.08.16`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}