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

Quick assessment

Affected
espressif esp-idf
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Espressif IoT Development Framework是Espressif Systems开源的一个物联网开发框架。 Espressif IoT Development Framework 5.5.1版本、5.4.3版本、5.3.4版本、5.2.6版本、5.1.6版本及之前版本存在缓冲区错误漏洞，该漏洞源于蓝牙主机栈中bta_dm_sdp_result函数使用固定大小数组存储服务UUID，可能导致越界写入。

AI Predicted 7.5 Difficulty: Easy EPSS 0.41% · P34

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-68473

Vulnerability Information
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Vulnerability Title
ESF-IDF Has Out-of-Bounds Read in ESP32 Bluetooth SDP Result Handling
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
Espressif IoT Development Framework 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Espressif IoT Development Framework是Espressif Systems开源的一个物联网开发框架。 Espressif IoT Development Framework 5.5.1版本、5.4.3版本、5.3.4版本、5.2.6版本、5.1.6版本及之前版本存在缓冲区错误漏洞，该漏洞源于蓝牙主机栈中bta_dm_sdp_result函数使用固定大小数组存储服务UUID，可能导致越界写入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
espressif esp-idf >= 5.5-beta1, <= 5.5.1 -

II. Public POCs for CVE-2025-68473

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III. Intelligence Information for CVE-2025-68473

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Patches & Fixes for CVE-2025-68473 (7)

Vendor Advisories for CVE-2025-68473 (1)

IV. Related Vulnerabilities

Same product: esp-idf
Same vendor: espressif
Same weakness: CWE-787

V. Comments for CVE-2025-68473

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