To exploit this, you need write access to one of the parent directories in the path. Use the command to check permissions: icacls "C:\Program Files" Use code with caution. Copied to clipboard If your current user (or a group you belong to) has (Write) or (Full Control) permissions, the path is exploitable. 3. Payload Creation
The implications of the NSSM-2.24 exploit are severe. If an attacker is able to exploit the vulnerability, they can execute arbitrary code on the system, which can lead to a range of malicious activities, including:
Look for (A;;RPWPCCDCLCSWRCWDWOGA;;;AU) – that grants Authenticated Users change config rights. Remove with: nssm-2.24 exploit
Red Hat Product Security analyzed CVE-2025-41686 and determined that the vulnerability does not affect any currently supported Red Hat product, as the issue is specific to the Phoenix Contact DaUM Windows installer implementation rather than the core NSSM codebase.
This permission level allowed standard, non-administrator users to replace the nssm.exe file used to launch the CouchDB service. Since the Apache CouchDB service runs with LocalSystem privileges, replacing the binary would cause the service—upon restart or system reboot—to execute arbitrary code with SYSTEM rights. The exploit technique, documented in Exploit-DB reference 40865, remains a textbook example of how third-party software vendors inadvertently create privilege escalation vectors by inheriting insecure permissions across their deployment packages. To exploit this, you need write access to
In Wowza Streaming Engine version 4.5.0, the nssm_x64.exe binary located in the manager and engine service directories was discovered to have improper file permissions that granted "Everyone" group full access. This misconfiguration allowed any authenticated local user to replace the legitimate nssm.exe with a malicious executable that would execute with LocalSystem privileges when the service restarted.
Version 2.24, released on August 31, 2014, remains widely deployed in both enterprise and operational technology (OT) environments. While newer builds incorporate bug fixes and enhanced security features, the persistent presence of version 2.24 across critical systems has made it a recurring vector for privilege escalation attacks and a favored persistence mechanism for ransomware groups and state-aligned hackers. released on August 31
It was likely referring to:
For learning about Windows service abuse (without targeting NSSM specifically), search for and “unquoted service path” in platforms like TryHackMe or HackTheBox.