What’s Vulnerable › Vulnerabilities

CVE-2025-64724: Arduino IDE for macOS has Insecure File Permissions

• Severity: high (CVSS 7.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-18 · updated 2026-06-17
• Weakness: CWE-276

Description

Arduino IDE is an integrated development environment. Prior to version 2.3.7, Arduino IDE for macOS is installed with world-writable file permissions on sensitive application components, allowing any local user to replace legitimate files with malicious code. When another user launches the application, the malicious code executes with that user's privileges, enabling privilege escalation and unauthorized access to sensitive data. The fix is included starting from the `2.3.7` release.

Affected products

• arduino-ide: before 2.3.7 — fixed in 2.3.7

How to fix

Upgrade to a fixed version: arduino-ide 2.3.7. Check the vendor advisory for mitigations.

References

• https://github.com/arduino/arduino-ide/pull/2805/commits/5d282f38496e96dcba02818536c0835bd684ec98
• https://github.com/arduino/arduino-ide/releases/tag/2.3.7
• https://github.com/arduino/arduino-ide/security/advisories/GHSA-3fvj-pgqw-fgw6
• https://support.arduino.cc/hc/en-us/articles/24329484618652-ASEC-25-004-Arduino-IDE-v2-3-7-Resolves-Multiple-Vulnerabilities

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