CVE-2025-68473 NONE

CVE-2025-68473: ESF-IDF Has Out-of-Bounds Read in ESP32 Bluetooth SDP Result Handling

Vendor Espressif
Product esp-idf
Weakness CWE-787
Published December 26, 2025
Last update December 29, 2025

CVSS base score

0.0/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.1, 5.4.3, 5.3.4, 5.2.6, 5.1.6, and earlier, in the ESP-IDF Bluetooth host stack (BlueDroid), the function bta_dm_sdp_result() used a fixed-size array uuid_list[32][MAX_UUID_SIZE] to store discovered service UUIDs during the SDP (Service Discovery Protocol) process. On modern Bluetooth devices, it is possible for the number of available services to exceed this fixed limit (32). In such cases, if more than 32 services are discovered, subsequent writes to uuid_list could exceed the bounds of the array, resulting in a potential out-of-bounds write condition.

Key dates

02Disclosure timeline

December 26, 2025 CVE published
December 29, 2025 Record updated