What’s Vulnerable › Vulnerabilities

CVE-2018-6384

• Severity: high (CVSS 7.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-01-31 · updated 2026-06-17
• Weakness: CWE-428

Description

Unquoted Windows search path vulnerability in NSClient++ before 0.4.1.73 allows non-privileged local users to execute arbitrary code with elevated privileges on the system via a malicious program.exe executable in the %SYSTEMDRIVE% folder.

Affected products

• NSClient++: before 0.4.1.73 — fixed in 0.4.1.73

How to fix

Upgrade to a fixed version: NSClient++ 0.4.1.73. Check the vendor advisory for mitigations.

References

• https://nsclient.org/blog/2018/01/30/CVE-2018-6384-0.3.9/
• https://www.on-x.com/sites/default/files/on-x_-_security_advisory_-_nsclient_-_cve-2018-6384.pdf
• https://nsclient.org/blog/2018/01/30/CVE-2018-6384-0.3.9/
• https://www.on-x.com/sites/default/files/on-x_-_security_advisory_-_nsclient_-_cve-2018-6384.pdf

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