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+---
+title: "ASEC-25-003 - Arduino-IDE v2.3.5 Resolves Multiple Vulnerabilities"
+---
+
+Bulletin ID: ASEC-25-003  
+Date: Apr 3, 2025  
+Product/Component: Arduino-IDE  
+Affected versions: \<= 2.3.4  
+Fixed version: \>= 2.3.5
+
+## Summary
+
+A new version of the Arduino IDE (v2.3.5) is now available at the following link: [Arduino IDE v2.3.5 Release](https://github.com/arduino/arduino-ide/releases/tag/2.3.5).
+
+This release includes several improvements and updates, notably:
+
+* Upgrading the underlying Theia IDE to version v1.57.0.
+* Updating the Arduino CLI component to version v1.2.0, which addresses multiple security vulnerabilities affecting external components.
+* Additionally, this update includes a dedicated security fix for the CVE-2025-27608 vulnerability that affects all Arduino IDE versions before version v2.3.5. Further details are available in the official security advisory at the following link: [GHSA-252h-4j5q-88pc](https://github.com/arduino/arduino-ide/security/advisories/GHSA-252h-4j5q-88pc).
+
+Specifically, this update mitigates the following Common Vulnerabilities and Exposures (CVEs):
+
+* CVE-2025-21614
+* CVE-2025-21613
+* CVE-2025-27608
+
+## Action Required
+
+To ensure security and stability, users are advised to update Arduino-IDE to version v2.3.5 as soon as possible. This update automatically includes all patches described above.
+
+**Update Steps:**
+
+1. Download the latest version from the official release page: [https://www.arduino.cc/en/software](https://www.arduino.cc/en/software)
+2. Follow the installation instructions provided in the documentation.
+3. Verify that the update was successful.
+
+## Additional Information
+
+For further details regarding the resolved vulnerabilities, refer to the following CVE reports:
+
+* [Arduino-IDE v2.3.5 Release](https://github.com/arduino/arduino-ide/releases/tag/2.3.5)
+* [CVE-2025-27608](https://nvd.nist.gov/vuln/detail/CVE-2025-27608)
+* [GHSA-252h-4j5q-88pc](https://github.com/arduino/arduino-ide/security/advisories/GHSA-252h-4j5q-88pc)
+* [Arduino-CLI v1.2.0 Release](https://github.com/arduino/arduino-cli/releases/tag/v1.2.0)
+* [CVE-2025-21614](https://nvd.nist.gov/vuln/detail/CVE-2025-21614)
+* [CVE-2025-21613](https://nvd.nist.gov/vuln/detail/CVE-2025-21613)
+
+For any questions or support, please refer to the [Arduino-IDE GitHub repository](https://github.com/arduino/arduino-ide) or the official support channels.
+
+## Contact
+
+If you encounter any issues or have questions regarding this security update, please contact our security team at security@arduino.cc.