CVE-2025-64342: ESF-IDF's ESP32 Bluetooth Controller Has an Invalid Access Address Vulnerability
ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. When the ESP32 is in advertising mode, if it receives a connection request containing an invalid Access Address (AA) of 0x00000000 or 0xFFFFFFFF, advertising may stop unexpectedly. In this case, the controller may incorrectly report a connection event to the host, which can cause the application layer to assume that the device has successfully established a connection. This issue has been fixed in versions 5.5.2, 5.4.3, 5.3.5, 5.2.6, and 5.1.7. At time of publication versions 5.5.2, 5.3.5, and 5.1.7 have not been released but are fixed respectively in commits 3b95b50, e3d7042, and 75967b5.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-64342?
CVE-2025-64342 is considered a medium severity vulnerability due to its impact on the ESP32's advertising mode.
How do I fix CVE-2025-64342?
To fix CVE-2025-64342, users should update to Espressif ESP-IDF version 5.1.7 or later, where the vulnerability has been addressed.
What systems are affected by CVE-2025-64342?
CVE-2025-64342 affects devices using the Espressif ESP-IDF framework prior to version 5.1.7.
What is the impact of CVE-2025-64342?
The impact of CVE-2025-64342 is that advertising may stop unexpectedly when the ESP32 receives an invalid Access Address in a connection request.
Is there a workaround for CVE-2025-64342?
There is no known workaround for CVE-2025-64342 other than updating to the latest version of the Espressif ESP-IDF.