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Fencer Vulns
high 7.8

CVE-2018-18858 json

Multiple local privilege escalation vulnerabilities have been identified in the LiquidVPN client through 1.37 for macOS.

published 2018-11-20 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-10569

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits
1
Exploit-DB

Summary

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.

Timeline

  1. First public exploit (EDB-45782)
  2. Published

Exploit prediction

1.57% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-45782 LiquidVPN 1.36 / 1.37 - Privilege Escalation local, 2018-11-05
  • packetstormsecurity.com http://packetstormsecurity.com/files/150137/LiquidVPN-For-macOS-1.3.7-Privilege-Escalation.html referenced PoC, tagged "exploit" by a source, unverified
  • seclists.org http://seclists.org/fulldisclosure/2018/Nov/1 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.