Vulnerability · Published Jan 13, 2026 · Assigned by VulnCheck

CVE-2022-50917ProtonVPN 1.26.0 - Unquoted Service Path

High 7.8

In plain English

A high-severity security flaw in ProtonVPN from ProtonVPN. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 86.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

ProtonVPN 1.26.0 contains an unquoted service path vulnerability in its WireGuard service configuration that allows local attackers to potentially execute arbitrary code. Attackers can exploit the unquoted path by placing malicious executables in specific file system locations to gain elevated privileges during service startup.

Affected products (as reported)

VendorProductVersions
ProtonVPN ProtonVPN 1.26.0

Weakness: CWE-428 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References