Nssm-2.24 Exploit ^hot^ ❲RECENT ✭❳
: The attacker locates the nssm.exe binary installed as part of the DaUM-WINDOWS-SERVICE with improperly configured permissions that allow modification or replacement by non-administrative users.
This paper presents an analysis of a critical vulnerability in NSSM-2.24, a popular service manager for Windows. The vulnerability, which allows for privilege escalation, was identified and verified through a thorough examination of the software's source code and behavior. A proof-of-concept exploit is provided to demonstrate the vulnerability's impact, along with recommendations for mitigation and patching.
is a concrete example. This vulnerability, which carries a CVSS score of 7.8 (High) , arises from improper permissions set on the nssm.exe file. A low‑privileged local attacker can overwrite or replace nssm.exe with a malicious binary. When a higher‑privileged process (or a service) later executes the manipulated NSSM file, the attacker’s code runs with administrative rights, leading to full system compromise. nssm-2.24 exploit
: Attackers use NSSM to install malware, reverse shells, or coin miners as a Windows service. This allows the malicious program to start automatically on boot and restart if it crashes. Case Study: GeoServer RCE (CVE-2024-36401)
sc delete <servicename>
: Use Windows Defender Application Control (WDAC) or AppLocker to restrict NSSM execution to authorized administrators only and from approved installation paths.
Elias knew the history of NSSM. While it was a "service manager that didn't suck," its older versions had a hidden flaw: Improper Permissions (CVE-2025-41686) . In this environment, the nssm.exe binary had been installed in a directory where the "Users" group accidentally had "Full Control". : The attacker locates the nssm
There are no documented exploits for NSSM version 2.24 itself. However,
CVE-2025-41686 Published: August 12, 2025 CVSS v3.1 Score: 7.8 (High) Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CWE: 306 (Missing Authentication for Critical Function) A proof-of-concept exploit is provided to demonstrate the
You're referring to a specific vulnerability in the Non-SUID SetUID Manager (NSSM) version 2.24.
