How severe is CVE-2018-4010?

CVE-2018-4010 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-4010 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-4010?

CVE-2018-4010 affects Protonvpn. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-4010?

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-2018-4010 published?

CVE-2018-4010 was published on 2018-09-07 and last updated on 2026-06-17.

CVE-2018-4010

CVE-2018-4010 is a high-severity vulnerability in Protonvpn 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-78.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 9.3
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Protonvpn
Published: 2018-09-07
Last modified: 2026-06-17

Description

An exploitable code execution vulnerability exists in the connect functionality of ProtonVPN VPN client 1.5.1. A specially crafted configuration file can cause a privilege escalation, resulting in the ability to execute arbitrary commands with the system's privileges.

Frequently asked questions

What is CVE-2018-4010?: An exploitable code execution vulnerability exists in the connect functionality of ProtonVPN VPN client 1.5.1. A specially crafted configuration file can cause a privilege escalation, resulting in the ability to execute arbitrary commands with the system's privileges.
How severe is CVE-2018-4010?: CVE-2018-4010 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-4010 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-4010?: CVE-2018-4010 affects Protonvpn. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-4010?: 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-2018-4010 published?: CVE-2018-4010 was published on 2018-09-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:protonvpn:protonvpn:1.5.1:*:*:*:*:*:*:*

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