CVE-2025-64342

Description

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.

Is your site exposed to CVE-2025-64342?

Run a free security scan — no signup, results in seconds.

Weakness Type (CWE)

CWE-754 CWE-754

References

Other References

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

Frequently Asked Questions

What is CVE-2025-64342? +

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.

How do I check if I'm vulnerable to CVE-2025-64342? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-35225

An unauthenticated remote attacker is able to exhaust all available TCP connections in the CODESYS EtherNet/IP adapter stack, preventing legitimate …

CVE-2025-0112

A problem with a detection mechanism in the Palo Alto Networks Cortex XDR agent on Windows devices enables a user …

CVE-2025-0116

A Denial of Service (DoS) vulnerability in Palo Alto Networks PAN-OS software causes the firewall to unexpectedly reboot when processing …

CVE-2025-0128

A denial-of-service (DoS) vulnerability in the Simple Certificate Enrollment Protocol (SCEP) authentication feature of Palo Alto Networks PAN-OS® software enables …

CVE-2025-0129

An improper exception check in Palo Alto Networks Prisma Access Browser allows a low privileged user to prevent Prisma Access …

CVE-2025-53359

ethereum is a common ethereum structs for Rust. Prior to ethereum crate v0.18.0, signature malleability (according to EIP-2) was only …