{"id":"CVE-2021-27159","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-27159","generatedAt":"2026-10-27T22:26:15.768Z","title":"The web daemon contains the hardcoded useradmin / 888888 credentials for an ISP.","description":"An issue was discovered on FiberHome HG6245D devices through RP2613. The web daemon contains the hardcoded useradmin / 888888 credentials for an ISP.","published":"2021-02-10T19:15:14.000Z","lastModified":"2026-06-17T03:44:22.000Z","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-798"],"affected":["fiberhome/hg6245d firmware"],"epss":{"score":0.23046,"percentile":0.97741,"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 23.0%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#httpd-hardcoded-credentials","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#httpd-hardcoded-credentials","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-27159","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."}