CVE-2025-53540
HIGH EPSS 21.6%
Published Jul 7, 202511mo ago · Modified Jun 17, 20261w ago
8.7 CVSS 4.0
Published Jul 7, 2025 11mo ago
Last Modified Jun 17, 2026 1w ago
Description
arduino-esp32 is an Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 microcontrollers. Several OTA update examples and the HTTPUpdateServer implementation are vulnerable to Cross-Site Request Forgery (CSRF). The update endpoints accept POST requests for firmware uploads without CSRF protection. This allows an attacker to upload and execute arbitrary firmware, resulting in remote code execution (RCE). This vulnerability is fixed in 3.2.1.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction P
Scope X
Threat Intelligence
EPSS Exploit Probability
21.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-352 Cross-Site Request Forgery (CSRF) Authentication
References 2
- github.com https://github.com/espressif/arduino-esp32/commit/f4fdecc60c465384e465a4b1d2bd1eac8f67912e
- github.com https://github.com/espressif/arduino-esp32/security/advisories/GHSA-9vfw-wx65-c872
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.