CVE-2025-34079
7.8 · HIGHOverview
CVE-2025-34079 is a high-severity vulnerability affecting nsclient nsclient\+\+. It was published on July 2, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).
This vulnerability has a CVSS 3.1 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
An authenticated remote code execution vulnerability exists in NSClient++ version 0.5.2.35 when the web interface and ExternalScripts module are enabled. A remote attacker with the administrator password can authenticate to the web interface (default port 8443), inject arbitrary commands as external scripts via the /settings/query.json API, save the configuration, and trigger the script via the /query/{name} endpoint. The injected commands are executed with SYSTEM privileges, enabling full remote compromise.
This capability is an intended feature, but the lack of safeguards or privilege separation makes it risky when exposed to untrusted actors.
Remediation
Check the references section for vendor advisories and patches from nsclient. Update nsclient\+\+ 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 |
|---|
Frequently Asked Questions
What is CVE-2025-34079?
CVE-2025-34079 is a high-severity vulnerability affecting nsclient nsclient\+\+. It was published on July 2, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).
How severe is CVE-2025-34079?
This vulnerability has a CVSS 3.1 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-2025-34079?
Check the references section for vendor advisories and patches from nsclient. Update nsclient\+\+ 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-2025-34079?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-34079 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
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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