Remi Onno

A format string vulnerability has been found in the "alias" parameter of the Serial Param configuration page in the NPort W2150A-W4/W2250A-W4 Series version 1.5 and prior. This vulnerability stems from insufficient input validation and improper handling of externally supplied format strings. An attacker could exploit this vulnerability by sending crafted input to the web service, causing unintended memory disclosure. Successful exploitation may allow an attacker to leak sensitive memory contents and determine critical memory addresses, potentially bypassing Address Space Layout Randomization (ASLR) protections.

**Name of the Vulnerable Software and Affected Versions** NPort W2150A-W4/W2250A-W4 Series versions prior to 1.5.1 **Description** A stack-based buffer overflow occurs due to insufficient input validation of user-supplied input in the `Server location` parameter on the Basic settings page. An authenticated attacker can send crafted input to the web service to cause memory corruption, potentially leading to remote code execution with root privileges on the target system. **Recommendations** Update to version 1.5.1.