CVE-2025-66409: 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…

PriorityP351critical9.1CVSS 3.1

AVNACLPRNUINSUCHINAH

EPSS

0.53%

40.9th percentile

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.

Affected

9 ranges

Vendor	Product	Version range	Fixed in
espressif	esp-idf	<= 5.1.6	—
espressif	esp-idf	—	—
espressif	esp-idf	—	—
espressif	esp-idf	—	—
espressif	esp-idf	—	—
espressif	esp-idf	5.2 – 5.2.6	—
espressif	esp-idf	5.3 – 5.3.4	—
espressif	esp-idf	5.4 – 5.4.3	—
espressif	esp-idf	5.5 – 5.5.1	—

CVSS provenance

nvdv3.19.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

nvdv4.02.7LOWCVSS: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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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