CVE-2025-66409— ESF-IDF has an Out-of-Bounds Read in ESP32 Bluetooth AVRCP 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.
ESP-IDF是Espressif开源的一个 Windows、Linux 和 macOS 上支持的 Espressif SoC 的开发框架。 ESP-IDF 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启用时缓冲区长度验证不足，可能导致越界读取。
Possible ATT&CK Techniques 1 AI
T1200 · Hardware Additions
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I. Basic Information for CVE-2025-66409
Vulnerability Information
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Vulnerability Title
ESF-IDF has an Out-of-Bounds Read in ESP32 Bluetooth AVRCP Command Handling
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS: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
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
ESP-IDF 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ESP-IDF是Espressif开源的一个 Windows、Linux 和 macOS 上支持的 Espressif SoC 的开发框架。 ESP-IDF 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启用时缓冲区长度验证不足，可能导致越界读取。
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
II. Public POCs for CVE-2025-66409
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2025-66409 (1)
IV. Related Vulnerabilities
Same product: esp-idf
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CVE-2026-81508
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CVE-2026-55687
ESF-IDF: Stack-Based Out-of-Bounds Write in JPEG Decoder DQT -
CVE-2026-46532
ESF-IDF: Heap Out-of-Bounds Read in Bluedroid AVRCP Target P -
CVE-2026-45542
ESF-IDF: Heap buffer overflow in protocomm Security2 over Bl -
CVE-2026-45329
ESF-IDF: Out-of-Bounds Read in ESP-TEE Secure Service Wrappe
Same vendor: espressif
-
CVE-2026-81508
ESF-IDF: Heap Out-of-Bounds Read in Bluedroid A2DP Sink Medi -
CVE-2026-55687
ESF-IDF: Stack-Based Out-of-Bounds Write in JPEG Decoder DQT -
CVE-2026-46532
ESF-IDF: Heap Out-of-Bounds Read in Bluedroid AVRCP Target P -
CVE-2026-45542
ESF-IDF: Heap buffer overflow in protocomm Security2 over Bl -
CVE-2026-45329
ESF-IDF: Out-of-Bounds Read in ESP-TEE Secure Service Wrappe
Same weakness: CWE-125
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CVE-2026-109951
FreeRDP 3.17.1 before 3.32.0 Heap Buffer Over-Read via Proxy -
CVE-2026-109950
FreeRDP 3.0.0 before 3.32.0 Heap Out-of-Bounds Read via RD G -
CVE-2026-109677
FreeRDP 2.0.0-beta1 before 3.28.0 Out-of-Bounds Read via Loc -
CVE-2026-65150
NVIDIA DALI越界读取漏洞致信息泄露及服务中断 -
CVE-2026-65147
NVIDIA DALI越界读取漏洞
V. Comments for CVE-2025-66409
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