Out-of-bounds Read in Espressif Esp-idf
CVE-2025-66409
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 Blu…
Vulnerability class: Buffer Overflow
EPSS: 0.006 (42.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
Affected products
- Espressif Esp-idf — versions >= 5.5-beta1, <= 5.5.1, >= 5.4-beta1, <= 5.4.3, >= 5.3-beta1, <= 5.3.4
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-66409?
- CVE-2025-66409 is a critical-severity vulnerability in Espressif Esp-idf, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2025-12-02.
- How severe is CVE-2025-66409?
- Critical severity. CVSS v3 base score is 9.1 out of 10.