Privilege escalation in Mozilla VPN for macOS



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-5687
CWE-ID CWE-276
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Mozilla VPN for macOS
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor Mozilla

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Incorrect default permissions

EUVDB-ID: #VU110682

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-5687

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to incorrect default permissions for files and folders that are set by the application. A local user with access to the system can execute arbitrary code with root privileges. 

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mozilla VPN for macOS: before 2.28.0

CPE2.3 External links

https://www.mozilla.org/en-US/security/advisories/mfsa2025-48/
https://bugzilla.mozilla.org/show_bug.cgi?id=1953736


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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