Nssm-2.24 Privilege Escalation Jun 2026

Another variant is when the NSSM executable itself ( nssm.exe ) is placed in a directory where a low-privileged user has write access. An attacker can replace the legitimate nssm.exe with a malicious binary. When the service runs, it executes the malicious binary with elevated SYSTEM privileges. 3. Example Scenario: Exploiting NSSM 2.24

Given the severity and multiple appearances of this vulnerability class, proactive mitigation is essential. nssm-2.24 privilege escalation

: Configure the service to "Log on" as a specific user with the minimum required permissions rather than the default SYSTEM account. Download - NSSM - the Non-Sucking Service Manager Another variant is when the NSSM executable itself ( nssm

: A toggle to ensure the service defaults to a virtual account or a low-privileged user instead of the "LocalSystem" account, which is the most frequent target for attackers looking for administrative control. Why this is needed Download - NSSM - the Non-Sucking Service Manager

– Configure NSSM services to run as a managed service account (gMSA) instead of LOCAL SYSTEM.

Typical exploitation steps (conceptual)