CVE-2025-66409: low-severity vulnerability in espressif esp-idf
ESF-IDF has an Out-of-Bounds Read in ESP32 Bluetooth AVRCP Command Handling
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 2.7epss 0.7%
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.
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
Affected products
espressif · esp-idfRelated CVEs — espressif esp-idf
In the same product, most dangerous first.
CVE-2025-52471HIGHESP-NOW Integer Underflow Vulnerability AdvisoryEPSS 0.9%CVE-2026-55687HIGHESF-IDF: Stack-Based Out-of-Bounds Write in JPEG Decoder DQT Marker ParsingEPSS 0.7%CVE-2024-53845MEDIUMAES/CBC Constant IV Vulnerability in ESPTouch v2EPSS 0.6%CVE-2022-24893HIGHEspressif Bluetooth Mesh Stack Vulnerable to Out-of-bounds Write leading to memory buffer corruptionEPSS 0.5%CVE-2026-45541HIGHESF-IDF: Remote Null Pointer Dereference in WebSocket ServerEPSS 0.4%CVE-2025-64342MEDIUMESF-IDF's ESP32 Bluetooth Controller Has an Invalid Access Address VulnerabilityEPSS 0.4%
References
https://github.com/espressif/esp-idf/commit/075ed218cadb8088155521cd8a795d8a626519fbhttps://github.com/espressif/esp-idf/commit/2f788e59ee361eee230879ae2ec9cf5c893fe372https://github.com/espressif/esp-idf/commit/798029129a71c802cff0e75eb59f902bca8f1946https://github.com/espressif/esp-idf/commit/999710fccf95ae128fe51b5679d6b7c75c50d902https://github.com/espressif/esp-idf/commit/d5db5f60fc1dcfdd8cd3ee898fdefaa272988acehttps://github.com/espressif/esp-idf/commit/daeeba230327176b9627b1caa94acdc54065c4b7https://github.com/espressif/esp-idf/security/advisories/GHSA-qhf9-vr2h-jh96