Nssm-2.24 Privilege Escalation ^hot^ Jun 2026

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Organizations must take immediate action to identify instances of NSSM 2.24 across their environments, apply available patches or mitigations, and implement robust monitoring for binary replacement attacks. The discovery of vulnerabilities like CVE-2025-41686, CVE-2016-8742, and CVE-2016-20033 demonstrates that even widely trusted administrative tools can introduce critical security risks when misconfigured. nssm-2.24 privilege escalation

If a low-privileged user can write a file named Program.exe in C:\ , the Windows Service Control Manager (SCM) will execute that malicious file instead of the actual nssm.exe when the service restarts. How the Attack Works (Scenario) This public link is valid for 7 days

Administrative access enables large-scale data exfiltration and deployment of ransomware across entire systems and networks. Can’t copy the link right now

Ensure that you are using the most stable, secure version of NSSM. Regularly check the official NSSM repository for security advisories, patches, or updates that address memory corruption, argument injection, or privilege management flaws.