Buffer overflow in ESP-IDF - CVE-2025-55297
Published: May 13, 2026
Vulnerability identifier: #VU131334
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-2025-55297
CWE-ID: CWE-120
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause memory corruption or unexpected behavior.
The vulnerability exists due to buffer copy without checking size of input in BluFi Wi-Fi credential handling functions when processing Wi-Fi credentials. A remote attacker can send oversized credential data to cause memory corruption or unexpected behavior.
The overflow occurs in buffers located in global memory.
Affected software
ESP-IDF
How to mitigate CVE-2025-55297
Install security update from vendor's website.
ESP-IDF - addressed in versions 5.0.9, 5.1.6, 5.2.5, 5.3.3, 5.4.1