Improper Check for Unusual or Exceptional Conditions in ESP-IDF - CVE-2025-64342
Published: November 19, 2025
Vulnerability identifier: #VU118615
CSH Severity: Medium
CVSS v4: 6.9 [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]
CVE-ID: CVE-2025-64342
CWE-ID: CWE-754
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the controller does not correctly handle invalid connection requests. A remote attacker can send specially crafted data to the application and perform a denial of service (DoS) attack.
Affected software
ESP-IDF
How to mitigate CVE-2025-64342
Install updates from vendor's website.
ESP-IDF - addressed in versions 5.2.6, 5.4.3