CVE-2018-18857

Name: CVE-2018-18857
Creator: NVD / NIST
Published: 2018-11-20T19:29:01.51+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.60%

Last modified Jun 17, 2026

CVE-2018-18857 is a vulnerability of currently unknown severity. 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 "command_line" parameter as a shell command.. EPSS estimates a 1.60% chance of exploitation in the next 30 days.

Description

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 "command_line" parameter as a shell command.

Metrics

EPSS Probability

1.60%

72.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Liquidvpn	Liquidvpn	<= 1.37

References

http://packetstormsecurity.com/files/150137/LiquidVPN-For-macOS-1.3.7-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2018/Nov/1Exploit, Mailing List, Third Party Advisory
https://www.exploit-db.com/exploits/45782/Exploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/150137/LiquidVPN-For-macOS-1.3.7-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2018/Nov/1Exploit, Mailing List, Third Party Advisory
https://www.exploit-db.com/exploits/45782/Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Nov 20, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-18857?

How severe is CVE-2018-18857?

Severity scoring for CVE-2018-18857 is pending analysis. The EPSS model estimates a 1.60% probability of exploitation in the next 30 days.

How do I fix CVE-2018-18857?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-18857?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST