AUGUST 4, 2026
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Case File

CVE-2025-66409

CRITICAL · CVSS 9.1 EPSS 0.63% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-12-02 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.1. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2025-66409
Severity
CRITICAL
CVSS
9.1
EPSS
0.63%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)