Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Espressif | Esp-Idf | <= 5.1.6 |
Related Weaknesses (CWE)
References
- https://github.com/espressif/esp-idf/commit/075ed218cadb8088155521cd8a795d8a6265Patch
- https://github.com/espressif/esp-idf/commit/2f788e59ee361eee230879ae2ec9cf5c893fPatch
- https://github.com/espressif/esp-idf/commit/798029129a71c802cff0e75eb59f902bca8fPatch
- https://github.com/espressif/esp-idf/commit/999710fccf95ae128fe51b5679d6b7c75c50Patch
- https://github.com/espressif/esp-idf/commit/d5db5f60fc1dcfdd8cd3ee898fdefaa27298Patch
- https://github.com/espressif/esp-idf/commit/daeeba230327176b9627b1caa94acdc54065Patch
- https://github.com/espressif/esp-idf/security/advisories/GHSA-qhf9-vr2h-jh96PatchVendor Advisory
FAQ
What is CVE-2025-66409?
CVE-2025-66409 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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 comma...
How severe is CVE-2025-66409?
CVE-2025-66409 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2025-66409?
Check the references section above for vendor advisories and patch information. Affected products include: Espressif Esp-Idf.