Medium 6.9Published Nov 17, 2025

CVE-2025-64342ESF-IDF's ESP32 Bluetooth Controller Has an Invalid Access Address Vulnerability

Updated under an hour ago (Oct 27, 2026, 9:50 AM ET)

Does this affect you?

It affects espressif esp-idf. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for espressif esp-idf

Exploited in the last 30 days

ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. When the ESP32 is in advertising mode, if it receives a connection request containing an invalid Access Address (AA) of 0x00000000 or 0xFFFFFFFF, advertising may stop unexpectedly. In this case, the controller may incorrectly report a connection event to the host, which can cause the application layer to assume that the device has successfully established a connection. This issue has been fixed in versions 5.5.2, 5.4.3, 5.3.5, 5.2.6, and 5.1.7. At time of publication versions 5.5.2, 5.3.5, and 5.1.7 have not been released but are fixed respectively in commits 3b95b50, e3d7042, and 75967b5.

CVSS: 6.9 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Weakness (CWE): CWE-754
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Nov 17, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

espressif esp-idf espressif:esp_idf (from the name)	from 5.5-beta1, < 5.5.2; from 5.4-beta1, < 5.4.3; from 5.3-beta1, < 5.3.5; from 5.2-beta1, < 5.2.6; before 5.1.7	CNA record

References

References

https://github.com/espressif/esp-idf/security/advisories/GHSA-8mg7-9qpg-p92v	x-refsource-confirm
https://github.com/espressif/esp-idf/commit/309f031dd6b04de30c926a256508c65b0df95dfa	x-refsource-misc
https://github.com/espressif/esp-idf/commit/3b95b50703cd3301a370cffaa1cc299b1941fe2a	x-refsource-misc
https://github.com/espressif/esp-idf/commit/75967b578563ea7876dc215251cbb6d64bc9d768	x-refsource-misc
https://github.com/espressif/esp-idf/commit/8ec541023684d33b498fa21c5b4724bce748aa7b	x-refsource-misc
https://github.com/espressif/esp-idf/commit/bf66761962579f73aea682d1154b9c99b9d3d7dc	x-refsource-misc
https://github.com/espressif/esp-idf/commit/e3d70429566ece1ef593d36aa4ebd320e0c95925	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.