How severe is CVE-2018-4008?

CVE-2018-4008 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-4008 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-4008?

CVE-2018-4008 affects Shimovpn Shimo Vpn. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-4008?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-4008 published?

CVE-2018-4008 was published on 2019-04-15 and last updated on 2026-06-17.

CVE-2018-4008

CVE-2018-4008 is a high-severity vulnerability in Shimovpn Shimo Vpn with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Shimovpn Shimo Vpn
Published: 2019-04-15
Last modified: 2026-06-17

Description

An exploitable privilege escalation vulnerability exists in the Shimo VPN 4.1.5.1 helper service in the RunVpncScript command. The command takes a user-supplied script argument and executes it under root context. A user with local access can use this vulnerability to raise their privileges to root. An attacker would need local access to the machine to successfully exploit this bug.

Frequently asked questions

What is CVE-2018-4008?: An exploitable privilege escalation vulnerability exists in the Shimo VPN 4.1.5.1 helper service in the RunVpncScript command. The command takes a user-supplied script argument and executes it under root context. A user with local access can use this vulnerability to raise their privileges to root. An attacker would need local access to the machine to successfully exploit this bug.
How severe is CVE-2018-4008?: CVE-2018-4008 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-4008 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-4008?: CVE-2018-4008 affects Shimovpn Shimo Vpn. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-4008?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-4008 published?: CVE-2018-4008 was published on 2019-04-15 and last updated on 2026-06-17.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0677

Affected products (1)

cpe:2.3:a:shimovpn:shimo_vpn:4.1.5.1:*:*:*:*:*:*:*

More vulnerabilities in Shimovpn Shimo Vpn

CVE-2018-4006 — High (CVSS 7.8): An exploitable privilege escalation vulnerability exists in the Shimo VPN 4.1.5.1 helper service in the writeConfig…
CVE-2018-4005 — High (CVSS 7.8): An exploitable privilege escalation vulnerability exists in the Shimo VPN 4.1.5.1 helper service in the…
CVE-2018-4009 — High (CVSS 7.8): An exploitable privilege escalation vulnerability exists in the Shimo VPN helper service due to improper validation of…
CVE-2018-4007 — High (CVSS 7.1): An exploitable privilege escalation vulnerability exists in the Shimo VPN 4.1.5.1 helper service in the deleteConfig…
CVE-2018-4004 — Medium (CVSS 5.5): An exploitable privilege escalation vulnerability exists in the Shimo VPN 4.1.5.1 helper service in the…

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