{"id":"CVE-2017-6957","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-6957","generatedAt":"2026-10-29T00:28:33.931Z","title":"Stack-based buffer overflow in the firmware in Broadcom Wi-Fi HardMAC SoC chips, when the firmware supports CCKM Fast and Secure Roaming and the feature is enabled in RAM, allows remote attackers to execute arbitrary code via a crafted reassociation…","description":"Stack-based buffer overflow in the firmware in Broadcom Wi-Fi HardMAC SoC chips, when the firmware supports CCKM Fast and Secure Roaming and the feature is enabled in RAM, allows remote attackers to execute arbitrary code via a crafted reassociation response frame with a Cisco IE (156).","published":"2017-03-27T14:59:00.000Z","lastModified":"2026-06-17T01:23:23.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":8.1,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-119"],"affected":["broadcom/bcm4339 soc firmware"],"epss":{"score":0.04588,"percentile":0.91597,"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 (4.59%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/141803/Broadcom-Stack-Buffer-Overflow.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/97054","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1051","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/141803/Broadcom-Stack-Buffer-Overflow.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/97054","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1051","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-6957","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."}