{"id":"CVE-2017-11120","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-11120","generatedAt":"2026-10-28T23:57:21.672Z","title":"On Broadcom BCM4355C0 Wi-Fi chips 9.44.78.27.0.1.56 and other chips, an attacker can craft a malformed RRM neighbor report frame to trigger an internal buffer overflow in the Wi-Fi firmware, aka B-V2017061204.","description":"On Broadcom BCM4355C0 Wi-Fi chips 9.44.78.27.0.1.56 and other chips, an attacker can craft a malformed RRM neighbor report frame to trigger an internal buffer overflow in the Wi-Fi firmware, aka B-V2017061204.","published":"2017-09-28T01:29:01.000Z","lastModified":"2026-06-17T01:01:15.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-119"],"affected":["broadcom/bcm4355c0 firmware","apple/iphone os","apple/tvos"],"epss":{"score":0.09129,"percentile":0.95286,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.07821,"percentile":0.94492},{"date":"2026-09-22","score":0.09129,"percentile":0.95081}]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2017-09-25","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":42784,"kind":"exploit","title":"Apple iOS 10.2 - Broadcom Out-of-Bounds Write when Handling 802.11k Neighbor Report Response","url":"https://www.exploit-db.com/exploits/42784","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/ios/remote/42784.txt","file":"exploits/ios/remote/42784.txt","published":"2017-09-25","added":"2017-09-25","updated":"2017-09-27","author":"Google Security Research","type":"remote","platform":"ios","port":null,"verified":true,"codes":["CVE-2017-11120"],"tags":"Out Of Bounds","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1289"}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB (verified) and the impact is critical, while EPSS rates exploitation at 9.1%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/144328/Broadcom-802.11k-Neighbor-Report-Response-Out-Of-Bounds-Write.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/100984","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1289","tags":["Exploit","Issue Tracking","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://lists.apple.com/archives/security-announce/2017/Sep/msg00007.html","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://lists.apple.com/archives/security-announce/2017/Sep/msg00009.html","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://source.android.com/security/bulletin/2017-09-01","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://support.apple.com/HT208112","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://support.apple.com/HT208113","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://support.apple.com/en-us/HT208112","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://support.apple.com/en-us/HT208113","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/42784/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/144328/Broadcom-802.11k-Neighbor-Report-Response-Out-Of-Bounds-Write.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/100984","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1289","tags":["Exploit","Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apple.com/archives/security-announce/2017/Sep/msg00007.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apple.com/archives/security-announce/2017/Sep/msg00009.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://source.android.com/security/bulletin/2017-09-01","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT208112","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT208113","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT208112","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT208113","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/42784/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-11120","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."}