RCE in Nsclient++

CVE-2025-34079

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 interfa…

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.731 (98.8th percentile) — read the EPSS interpretation.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-34079?
CVE-2025-34079 is a vulnerability in Nsclient++, classified under Code Injection. Published 2025-07-02.
Is CVE-2025-34079 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.