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CVE-2025-68474— ESF-IDF Has Out-of-Bounds Write in ESP32 Bluetooth AVRCP Vendor Command 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AVRCP堆栈中缓冲区大小验证不足，可能导致越界写入和内存损坏。

AI Predicted 7.5 Difficulty: Hard EPSS 0.32% · P23

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-68474

Vulnerability Information
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Vulnerability Title
ESF-IDF Has Out-of-Bounds Write in ESP32 Bluetooth AVRCP Vendor Command 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 avrc_vendor_msg() function of the ESP-IDF BlueDroid AVRCP stack, the allocated buffer size was validated using AVRC_MIN_CMD_LEN (20 bytes). However, the actual fixed header data written before the vendor payload exceeds this value. This totals 29 bytes written before p_msg->p_vendor_data is copied. Using the old AVRC_MIN_CMD_LEN could allow an out-of-bounds write if vendor_len approaches the buffer limit. For commands where vendor_len is large, the original buffer allocation may be insufficient, causing writes beyond the allocated memory. This can lead to memory corruption, crashes, or other undefined behavior. The overflow could be larger when assertions are disabled.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:L/SI:L/SA:L
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AVRCP堆栈中缓冲区大小验证不足，可能导致越界写入和内存损坏。
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-2025-68474

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III. Intelligence Information for CVE-2025-68474

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Patches & Fixes for CVE-2025-68474 (6)

Vendor Advisories for CVE-2025-68474 (1)

IV. Related Vulnerabilities

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

V. Comments for CVE-2025-68474

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