CVE-2025-64724: arduino-ide · Incorrect Default Permissions
Affects arduino-ideSource CVE Database V5
Not known to be exploited · CVSS 4.8 Medium : upgrade to 2.3.7 when convenient.
Data as of 26 Oct 2026, 08:30 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 2% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.3.7
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 18 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade arduino/arduino-ide to 2.3.7.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubarduino/arduino-idepkg:github/arduino/arduino-ideOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
1. Upgrade all installations of Arduino IDE on macOS to version 2.3.7 or later, where the file permission issue is fixed. 2. Audit existing Arduino IDE installations on macOS to verify file permissions of application components, ensuring they are not world-writable. Use commands like 'ls -l' to check permissions and 'chmod' to correct them if necessary. 3. Limit local user access on shared macOS systems to trusted personnel only, reducing the risk of malicious file replacement. 4. Implement endpoint protection and monitoring to detect unauthorized file modifications in application directories. 5. Educate users about the risks of running software with elevated privileges and the importance of reporting suspicious behavior. 6. Consider deploying macOS security features such as System Integrity Protection (SIP) and mandatory access controls to restrict unauthorized file changes. 7. Regularly review and update software inventories and patch management processes to ensure timely application of security updates.
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.
References
- github.com/arduino/arduino-ide/security/advisories/GHSA-3fvj-pgqw-fgw6 (opens in a new tab)
- github.com/arduino/arduino-ide/pull/2805/commits/5d282f38496e96dcba02818536c0835bd684ec98 (opens in a new tab)
- github.com/arduino/arduino-ide/releases/tag/2.3.7 (opens in a new tab)
- support.arduino.cc/hc/en-us/articles/24329484618652-ASEC-25-004-Arduino-IDE-v2-3-7-Resolves-Multiple-Vulnerabilities (opens in a new tab)