{"id":"CVE-2026-81508","revision":"aa41eafec0fb4880b9582a97f7c77708","records":[{"revision":"aa41eafec0fb4880b9582a97f7c77708","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-81508","aliases":[],"title":"ESF-IDF: Heap Out-of-Bounds Read in Bluedroid A2DP Sink Media Packet Processing","description":"ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In 5.5.5, 6.0.1, and 6.1, the BlueDroid A2DP sink function btc_a2dp_sink_handle_inc_media() reads a timestamp field from the received media buffer before validating that the packet layout contains the field. A paired BR/EDR audio source within radio range can send a malformed A2DP media packet to a build with BlueDroid Classic Bluetooth and A2DP sink support enabled, causing an out-of-bounds read into adjacent heap memory and limited disclosure of heap contents. Arbitrary memory disclosure and code execution are not established.","state":0,"publishedAt":"2026-09-24T17:52:54.643+00:00","modifiedAt":"2026-09-24T18:07:30.991+00:00","affected":[{"ecosystem":"Vendor product","name":"esp-idf","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"espressif\",\n                    \"product\": \"esp-idf\",\n                    \"versions\": [\n                        {\n                            \"version\": \"= 6.1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"= 6.0.1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"= 5.5.5\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":4.3,"severity":"MEDIUM"}],"references":["https://github.com/espressif/esp-idf/security/advisories/GHSA-xcpr-5mqp-9qvv","https://github.com/espressif/esp-idf/commit/0d118139ff8b7aa87b656c2f4a6421ecaa1f5939","https://github.com/espressif/esp-idf/commit/6cb20db4dfeee81314d0c55acb82f3f0e7679abe","https://github.com/espressif/esp-idf/commit/85d56bcd266117e0fe6a6b75511c8e122fda29ad","https://github.com/espressif/esp-idf/commit/ca55d63de82e41e2c672bfd2b707fc80911f30ce"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-81508","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-81508","identifiers":["CVE-2026-81508"]},"retained":false,"historicalAffected":[]}],"coverage":[]}