CVE-2025-66409
criticalESF-IDF is the Espressif Internet of Things (IOT) Development Framework.
Vendor / product: Espressif — esp-idf
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.
CVSS
9.1
9.1 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2025-12-02 19:15
Modified: 2026-10-18 18:10
NVD status: Analyzed
Last synced 2 days ago
Verified against the source API 2026-10-27 07:06 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
espressif / esp-idf ≤5.1.6, ≥5.2 ≤5.2.6, ≥5.3 ≤5.3.4, ≥5.4 ≤5.4.3, ≥5.5 ≤5.5.1
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://github.com/espressif/esp-idf/commit/075ed218cadb8088155521cd8a795d8a626519fb
Patch / mitigation: https://github.com/espressif/esp-idf/commit/2f788e59ee361eee230879ae2ec9cf5c893fe372
Patch / mitigation: https://github.com/espressif/esp-idf/commit/798029129a71c802cff0e75eb59f902bca8f1946
Patch / mitigation: https://github.com/espressif/esp-idf/commit/999710fccf95ae128fe51b5679d6b7c75c50d902
Patch / mitigation: https://github.com/espressif/esp-idf/commit/d5db5f60fc1dcfdd8cd3ee898fdefaa272988ace
Patch / mitigation: https://github.com/espressif/esp-idf/commit/daeeba230327176b9627b1caa94acdc54065c4b7
Patch / mitigation: https://github.com/espressif/esp-idf/security/advisories/GHSA-qhf9-vr2h-jh96
References
- https://github.com/espressif/esp-idf/commit/075ed218cadb8088155521cd8a795d8a626519fb security-advisories@github.com
- https://github.com/espressif/esp-idf/commit/2f788e59ee361eee230879ae2ec9cf5c893fe372 security-advisories@github.com
- https://github.com/espressif/esp-idf/commit/798029129a71c802cff0e75eb59f902bca8f1946 security-advisories@github.com
- https://github.com/espressif/esp-idf/commit/999710fccf95ae128fe51b5679d6b7c75c50d902 security-advisories@github.com
- https://github.com/espressif/esp-idf/commit/d5db5f60fc1dcfdd8cd3ee898fdefaa272988ace security-advisories@github.com
- https://github.com/espressif/esp-idf/commit/daeeba230327176b9627b1caa94acdc54065c4b7 security-advisories@github.com
- https://github.com/espressif/esp-idf/security/advisories/GHSA-qhf9-vr2h-jh96 security-advisories@github.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:06 UTC · record ↗