{"id":"CVE-2017-16953","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-16953","generatedAt":"2026-10-28T21:30:18.641Z","title":"connoppp.cgi on ZTE ZXDSL 831CII devices does not require HTTP Basic Authentication, which allows remote attackers to modify the PPPoE configuration or set up a malicious configuration via a GET request.","description":"connoppp.cgi on ZTE ZXDSL 831CII devices does not require HTTP Basic Authentication, which allows remote attackers to modify the PPPoE configuration or set up a malicious configuration via a GET request.","published":"2017-12-01T17:29:01.000Z","lastModified":"2026-06-17T01:10:12.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},"cwe":["CWE-287"],"affected":["zte/zxdsl 831cii firmware"],"epss":{"score":0.11261,"percentile":0.95945,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.08501,"percentile":0.94858},{"date":"2026-09-22","score":0.11261,"percentile":0.95772}]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2017-11-27","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":43188,"kind":"exploit","title":"ZTE ZXDSL 831CII - Improper Access Restrictions","url":"https://www.exploit-db.com/exploits/43188","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/hardware/webapps/43188.txt","file":"exploits/hardware/webapps/43188.txt","published":"2017-11-27","added":"2017-11-27","updated":"2017-12-05","author":"Ibad Shah","type":"webapps","platform":"hardware","port":null,"verified":true,"codes":["CVE-2017-16953"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 11.3%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-09-22T00:00:00.000Z","detail":{"to":0.11261,"from":0.08501,"percentile":0.95772},"summary":"EPSS moved from 8.5% to 11.3% probability of exploitation in the next thirty days."}],"references":[{"url":"http://packetstormsecurity.com/files/145121/ZTE-ZXDSL-831-Unauthorized-Configuration-Access-Bypass.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1008762","source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/43188/","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/145121/ZTE-ZXDSL-831-Unauthorized-Configuration-Access-Bypass.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1008762","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/43188/","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-16953","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."}