{"id":"CVE-2025-66409","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-66409","generatedAt":"2026-10-28T01:47:31.256Z","title":"This may lead to an out-of-bounds read, potentially exposing unintended memory content or causing unexpected behavior.","description":"ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In 5.5.1, 5.4.3, 5.3.4, 5.2.6, 5.1.6, and earlier, when AVRCP is enabled on ESP32, receiving a malformed VENDOR DEPENDENT command from a peer device can cause the Bluetooth stack to access memory before validating the command buffer length. This may lead to an out-of-bounds read, potentially exposing unintended memory content or causing unexpected behavior.","published":"2025-12-02T19:15:52.000Z","lastModified":"2026-10-18T18:10:00.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":2.7,"severity":"LOW","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-125"],"affected":["espressif/esp-idf"],"epss":{"score":0.00634,"percentile":0.50085,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.63%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/espressif/esp-idf/commit/075ed218cadb8088155521cd8a795d8a626519fb","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/espressif/esp-idf/commit/2f788e59ee361eee230879ae2ec9cf5c893fe372","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/espressif/esp-idf/commit/798029129a71c802cff0e75eb59f902bca8f1946","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/espressif/esp-idf/commit/999710fccf95ae128fe51b5679d6b7c75c50d902","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/espressif/esp-idf/commit/d5db5f60fc1dcfdd8cd3ee898fdefaa272988ace","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/espressif/esp-idf/commit/daeeba230327176b9627b1caa94acdc54065c4b7","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/espressif/esp-idf/security/advisories/GHSA-qhf9-vr2h-jh96","tags":["Patch","Vendor Advisory"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-66409","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."}