{"id":"CVE-2019-11516","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-11516","generatedAt":"2026-10-29T00:43:03.226Z","title":"Extended Inquiry Responses (EIRs) are improperly handled, which causes a heap-based buffer overflow during device inquiry.","description":"An issue was discovered in the Bluetooth component of the Cypress (formerly owned by Broadcom) Wireless IoT codebase. Extended Inquiry Responses (EIRs) are improperly handled, which causes a heap-based buffer overflow during device inquiry. This overflow can be used to overwrite existing functions with arbitrary code. The Reserved for Future Use (RFU) bits are not discarded by eir_handleRx(), and are included in an EIR's length. Therefore, one can exceed the expected 240 bytes, which leads to a heap-based buffer overflow in eir_getReceivedEIR() called by bthci_event_SendInquiryResultEvent(). In order to exploit this bug, an attacker must repeatedly connect to the victim's device in a short amount of time from different source addresses. This will cause the victim's Bluetooth stack to resolve the device names and therefore allocate buffers with attacker-controlled data. Due to the heap corruption, the name will be eventually written to an attacker-controlled location, leading to a write-what-where condition.","published":"2020-02-05T17:15:10.000Z","lastModified":"2026-06-17T02:13:05.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-787"],"affected":["google/android"],"epss":{"score":0.00855,"percentile":0.58177,"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 (0.85%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://community.cypress.com/thread/53681","source":"cve@mitre.org"},{"url":"https://source.android.com/security/bulletin/2019-08-01","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.cisecurity.org/advisory/multiple-vulnerabilities-in-google-android-os-could-allow-for-arbitrary-code-execution_2019-078/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.techrepublic.com/article/android-security-bulletin-august-2019-what-you-need-to-know/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://community.cypress.com/thread/53681","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://source.android.com/security/bulletin/2019-08-01","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisecurity.org/advisory/multiple-vulnerabilities-in-google-android-os-could-allow-for-arbitrary-code-execution_2019-078/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.techrepublic.com/article/android-security-bulletin-august-2019-what-you-need-to-know/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-11516","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."}