CVE-2025-66409CWE-125

CVE-2025-66409

Critical · published December 3, 2025

CVSS v3.1
9.1
EPSS
1%
Percentile
49.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00634 · 49.7th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2025-12-03T00:15Z
Affected products (5)
ProductVersionsFixed in
espressif/esp-idf≤ 5.1.6—
espressif/esp-idf≥ 5.2, ≤ 5.2.6—
espressif/esp-idf≥ 5.3, ≤ 5.3.4—
espressif/esp-idf≥ 5.4, ≤ 5.4.3—
espressif/esp-idf≥ 5.5, ≤ 5.5.1—
References (7)
https://github.com/espressif/esp-idf/commit/075ed218cadb8088155521cd8a795d8a626519fb · [email protected]https://github.com/espressif/esp-idf/commit/2f788e59ee361eee230879ae2ec9cf5c893fe372 · [email protected]https://github.com/espressif/esp-idf/commit/798029129a71c802cff0e75eb59f902bca8f1946 · [email protected]https://github.com/espressif/esp-idf/commit/999710fccf95ae128fe51b5679d6b7c75c50d902 · [email protected]https://github.com/espressif/esp-idf/commit/d5db5f60fc1dcfdd8cd3ee898fdefaa272988ace · [email protected]https://github.com/espressif/esp-idf/commit/daeeba230327176b9627b1caa94acdc54065c4b7 · [email protected]https://github.com/espressif/esp-idf/security/advisories/GHSA-qhf9-vr2h-jh96 · [email protected]
EPSS history
Timeline
  • 02 DEC 18:09Z
    ESF-IDF has an Out-of-Bounds Read in ESP32 Bluetooth AVRCP Command Handling
    cvelistv5