{"id":"CVE-2017-5135","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-5135","generatedAt":"2026-10-28T21:18:01.677Z","title":"Certain Technicolor devices have an SNMP access-control bypass, possibly involving an ISP customization in some cases.","description":"Certain Technicolor devices have an SNMP access-control bypass, possibly involving an ISP customization in some cases. The Technicolor (formerly Cisco) DPC3928SL with firmware D3928SL-P15-13-A386-c3420r55105-160127a could be reached by any SNMP community string from the Internet; also, you can write in the MIB because it provides write properties, aka Stringbleed. NOTE: the string-bleed/StringBleed-CVE-2017-5135 GitHub repository is not a valid reference as of 2017-04-27; it contains Trojan horse code purported to exploit this vulnerability.","published":"2017-04-27T15:59:00.000Z","lastModified":"2026-06-17T01:20:02.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":9.1,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"cwe":[],"affected":["technicolor/dpc3928sl firmware"],"epss":{"score":0.17855,"percentile":0.97158,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.11974,"percentile":0.95992},{"date":"2026-09-22","score":0.17534,"percentile":0.96999}]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2017-05-05","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":43384,"kind":"exploit","title":"Technicolor DPC3928SL - SNMP Authentication Bypass","url":"https://www.exploit-db.com/exploits/43384","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/hardware/remote/43384.py","file":"exploits/hardware/remote/43384.py","published":"2017-05-05","added":"2017-12-21","updated":"2017-12-21","author":"nixawk","type":"remote","platform":"hardware","port":null,"verified":false,"codes":["CVE-2017-5135"],"tags":null,"aliases":"Stringbleed","applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://github.com/nixawk/labs/blob/47d72af5b69bd4d2ec411b38313d33111a063c97/CVE-2017-5135/StringBleed-CVE-2017-5135.py"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 17.9%, higher than 97% 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":0.17534,"from":0.11974,"percentile":0.96999},"summary":"EPSS moved from 12.0% to 17.5% probability of exploitation in the next thirty days."}],"references":[{"url":"http://www.securityfocus.com/bid/98092","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://stringbleed.github.io/","tags":["Technical Description","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.reddit.com/r/netsec/comments/67qt6u/cve_20175135_snmp_authentication_bypass/","tags":["Press/Media Coverage","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/98092","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://stringbleed.github.io/","tags":["Technical Description","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.reddit.com/r/netsec/comments/67qt6u/cve_20175135_snmp_authentication_bypass/","tags":["Press/Media Coverage","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-5135","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."}