Before diving into the exploit, let's establish the baseline. Windows services typically run under the context of SYSTEM , LOCAL SERVICE , or NETWORK SERVICE —privileged accounts that have significant access to the operating system.
Beyond the binary permissions, NSSM is frequently deployed in a way that creates the infamous "Unquoted Service Path" vulnerability. This is not a bug in NSSM’s code but a standard Windows Service Control Manager (SCM) behavior that NSSM configurations frequently trigger.
:
While nssm.exe itself is a stable and legitimate administration utility, its implementation by third-party software installers and vendors frequently creates vulnerabilities. These flaws fall primarily into two categories: 1. Insecure Permissions on the Binary (Weak DACLs)
If the BINARY_PATH_NAME points to an NSSM executable (e.g., C:\nssm-2.24\win32\nssm.exe ), the service is a candidate.
Attackers typically target NSSM-managed services through the following methods: Unquoted Service Paths
Nssm-2.24 Privilege Escalation [new] Jun 2026
Before diving into the exploit, let's establish the baseline. Windows services typically run under the context of SYSTEM , LOCAL SERVICE , or NETWORK SERVICE —privileged accounts that have significant access to the operating system.
Beyond the binary permissions, NSSM is frequently deployed in a way that creates the infamous "Unquoted Service Path" vulnerability. This is not a bug in NSSM’s code but a standard Windows Service Control Manager (SCM) behavior that NSSM configurations frequently trigger. nssm-2.24 privilege escalation
:
While nssm.exe itself is a stable and legitimate administration utility, its implementation by third-party software installers and vendors frequently creates vulnerabilities. These flaws fall primarily into two categories: 1. Insecure Permissions on the Binary (Weak DACLs) Before diving into the exploit, let's establish the baseline
If the BINARY_PATH_NAME points to an NSSM executable (e.g., C:\nssm-2.24\win32\nssm.exe ), the service is a candidate. This is not a bug in NSSM’s code
Attackers typically target NSSM-managed services through the following methods: Unquoted Service Paths
