{"id":"CVE-2017-6658","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-6658","generatedAt":"2026-10-28T20:12:45.566Z","title":"Cisco Sourcefire Snort 3.0 before build 233 has a Buffer Overread related to use of a decoder array.","description":"Cisco Sourcefire Snort 3.0 before build 233 has a Buffer Overread related to use of a decoder array. The size was off by one making it possible to read past the end of the array with an ether type of 0xFFFF. Increasing the array size solves this problem.","published":"2017-05-16T17:29:00.000Z","lastModified":"2026-06-17T01:22:45.000Z","status":"Modified","sourceIdentifier":"psirt@cisco.com","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:N/A:H"},"cwe":["CWE-125"],"affected":["cisco/sourcefire snort"],"epss":{"score":0.0106,"percentile":0.6438,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.06%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://blog.snort.org/2017/05/snort-vulnerabilities-found.html","tags":["Third Party Advisory"],"source":"psirt@cisco.com"},{"url":"http://www.securitytracker.com/id/1038483","source":"psirt@cisco.com"},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170515-snort","tags":["Vendor Advisory"],"source":"nvd@nist.gov"},{"url":"http://blog.snort.org/2017/05/snort-vulnerabilities-found.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1038483","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-6658","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."}