CVE-2018-9336
7.8 · HIGHOverview
CVE-2018-9336 is a high-severity vulnerability affecting openvpn openvpn. It was published on May 1, 2018 and has a CVSS 3.0 base score of 7.8 (HIGH).
This vulnerability has a CVSS 3.0 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
openvpnserv.exe (aka the interactive service helper) in OpenVPN 2.4.x before 2.4.6 allows a local attacker to cause a double-free of memory by sending a malformed request to the interactive service. This could cause a denial-of-service through memory corruption or possibly have unspecified other impact including privilege escalation.
Remediation
Check the references section for vendor advisories and patches from openvpn. Update openvpn to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| openvpn | openvpn | >= 2.4.0, < 2.4.6 | Affected |
References
Frequently Asked Questions
What is CVE-2018-9336?
CVE-2018-9336 is a high-severity vulnerability affecting openvpn openvpn. It was published on May 1, 2018 and has a CVSS 3.0 base score of 7.8 (HIGH).
How severe is CVE-2018-9336?
This vulnerability has a CVSS 3.0 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2018-9336?
Check the references section for vendor advisories and patches from openvpn. Update openvpn to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2018-9336?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-9336 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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