CVE-2018-4004

Name: CVE-2018-4004
Creator: NVD / NIST
Published: 2019-04-17T15:29:00.487+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.38%

Last modified Jun 17, 2026

CVE-2018-4004 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An exploitable privilege escalation vulnerability exists in the Shimo VPN 4.1.5.1 helper service in the disconnectService functionality. A non-root user is able to kill any privileged process on the system. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

Description

An exploitable privilege escalation vulnerability exists in the Shimo VPN 4.1.5.1 helper service in the disconnectService functionality. A non-root user is able to kill any privileged process on the system. An attacker would need local access to the machine for a successful exploit.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.38%

29.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Shimovpn	Shimo Vpn	4.1.5.1

References

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0673Exploit, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0673Exploit, Third Party Advisory

Timeline

Published: Apr 17, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-4004?

How severe is CVE-2018-4004?

CVE-2018-4004 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2018-4004?

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-2018-4004?

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

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Source: NVD / NIST