PatchTheCVECVE-2018-18858: Multiple local privilege escalation vulnerabilities have been identified in the LiquidVPN client through 1.37
CVE-2018-18858 is a high-severity flaw (CVSS 7.8) affecting liquidvpn. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Multiple local privilege escalation vulnerabilities have been identified in the LiquidVPN client through 1.37 for macOS. An attacker can communicate with an unprotected XPC service and directly execute arbitrary OS commands as root or load a potentially malicious kernel extension because com.smr.liquidvpn.OVPNHelper uses the system function to execute the "tun_path" or "tap_path" pathname within a shell command.
Why this priority
- High severity
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.8 (High) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 1.6% (top 25%) |
| CISA exploited list | No |
| Weakness | CWE-78 |
| Published | 2018-11-20 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- Exploit-DB: LiquidVPN 1.36 / 1.37 - Privilege Escalation
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2018-18858?
liquidvpn: upgrade to newer than 1.37. Exact commands for each OS are on this page.
Is CVE-2018-18858 being exploited?
CVE-2018-18858 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2018-18858 affect?
CVE-2018-18858 affects liquidvpn. Severity is high (CVSS 7.8). Multiple local privilege escalation vulnerabilities have been identified in the LiquidVPN client through 1.37 for macOS. An attacker can communicate with an unprotected XPC service and directly execute arbitrary OS commands as root or load
How urgent is CVE-2018-18858?
Priority 51/100. High severity; Public exploit reference
Software pages
Related CVEs
- CVE-2018-18859 HIGH 7.8 UPGRADE Multiple local privilege escalation vulnerabilities have been identified in the LiquidVPN client through 1.37
- CVE-2018-18857 HIGH 7.8 UPGRADE Multiple local privilege escalation vulnerabilities have been identified in the LiquidVPN client through 1.37
- CVE-2018-18856 HIGH 7.8 UPGRADE Multiple local privilege escalation vulnerabilities have been identified in the LiquidVPN client through 1.37