Moxa NPort W2150A-W4/W2250A-W4/NPort W2150A/W2250A up to 1.5 Web Service stack-based overflow

Summaryinfo

A vulnerability was found in Moxa NPort W2150A-W4, W2250A-W4, NPort W2150A and W2250A up to 1.5. It has been classified as critical. This affects an unknown part of the component Web Service. The manipulation leads to stack-based overflow. This vulnerability is referenced as CVE-2026-10829. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Moxa NPort W2150A-W4, W2250A-W4, NPort W2150A and W2250A up to 1.5. It has been rated as critical. This issue affects an unknown code block of the component Web Service. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A stack-based buffer overflow vulnerability has been found in the NPort W2150A-W4/W2250A-W4 Series version 1.5 and earlier. This vulnerability stems from insufficient input validation of user-supplied input in the "Server location" parameter on the Basic settings page. An attacker could exploit this vulnerability by sending crafted input to the web service, resulting in memory corruption. Successful exploitation of this vulnerability could allow remote code execution on the target system with root privileges.

The weakness was published by Remi Onno. The advisory is shared at moxa.com. The identification of this vulnerability is CVE-2026-10829 since 06/04/2026. The exploitation is known to be easy. The attack may be initiated remotely. The exploitation requires an enhanced level of successful authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/16/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-37063). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Automation Software

Vendor

• Moxa

Name

• NPort W2150A
• NPort W2150A-W4
• W2250A
• W2250A-W4

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5

License

• commercial

Website

• Vendor: https://www.moxa.com/

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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