{"id":"CVE-2019-19825","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-19825","generatedAt":"2026-10-27T23:42:35.755Z","title":"On certain TOTOLINK Realtek SDK based routers, the CAPTCHA text can be retrieved via an {\"topicurl\":\"setting/getSanvas\"} POST to the boafrm/formLogin URI, leading to a CAPTCHA bypass.","description":"On certain TOTOLINK Realtek SDK based routers, the CAPTCHA text can be retrieved via an {\"topicurl\":\"setting/getSanvas\"} POST to the boafrm/formLogin URI, leading to a CAPTCHA bypass. (Also, the CAPTCHA text is not needed once the attacker has determined valid credentials. The attacker can perform router actions via HTTP requests with Basic Authentication.) This affects A3002RU through 2.0.0, A702R through 2.1.3, N301RT through 2.1.6, N302R through 3.4.0, N300RT through 3.4.0, N200RE through 4.0.0, N150RT through 3.4.0, and N100RE through 3.4.0.","published":"2020-01-27T17:15:12.000Z","lastModified":"2026-06-17T02:27:18.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-287"],"affected":["totolink/a3002ru firmware","totolink/a702r firmware","totolink/n301rt firmware","totolink/n302r firmware","totolink/n300rt firmware","totolink/n200re firmware","totolink/n150rt firmware","totolink/n100re firmware"],"epss":{"score":0.29557,"percentile":0.98176,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 29.6%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/156083/Realtek-SDK-Information-Disclosure-Code-Execution.html","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2020/Jan/36","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2020/Jan/38","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://sploit.tech","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/156083/Realtek-SDK-Information-Disclosure-Code-Execution.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2020/Jan/36","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2020/Jan/38","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sploit.tech","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-19825","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}