Nssm-2.24 Privilege Escalation [2021] Jun 2026

The attacker checks the permissions of the directory containing the executable using icacls : icacls "C:\Program Files\NSSM" Use code with caution.

The attacker renames the original nssm.exe (if permissions allow) or overwrites it with their malicious version. Step 4: Triggering Execution nssm-2.24 privilege escalation

When NSSM 2.24 is used to install a service, it might not properly quote the paths to the executable if those paths contain spaces. The attacker checks the permissions of the directory

: An attacker gains low-level interactive access to the target system (e.g., through a compromised user account, phishing, or remote access trojan). through a compromised user account