CVE-2025-5687: Local privilege escalation vulnerability in Mozilla VPN clients for macOS v2.27.0 and below.

Severity: high (CVSS 7.8 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: 2025-06-11 · updated 2026-06-17
Weakness: CWE-269

Description

A vulnerability in Mozilla VPN on macOS allows privilege escalation from a normal user to root. *This bug only affects Mozilla VPN on macOS. Other operating systems are unaffected.*. This vulnerability was fixed in Mozilla VPN 2.28.0 (macOS).

Affected products

Mozilla VPN 2.16.1: before 2.28.0 — fixed in 2.28.0

How to fix

Upgrade to a fixed version: Mozilla VPN 2.16.1 2.28.0. Check the vendor advisory for mitigations.

References

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

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