Vulnerability · Published Jun 16, 2026 · Assigned by Moxa

CVE-2026-10829

High 8.6

In plain English

A high-severity stack buffer overflow in NPort W2150A-W4/W2250A-W4 Series from Moxa. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).

Severity (CVSS 4.0)8.6High

Exploit odds (30 days)0.5%top 59.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Moxa	NPort W2150A-W4/W2250A-W4 Series	1.0 – through 1.5
Moxa	NPort W2150A/W2250A Series	1.0 – through 2.3

Weakness: CWE-121 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

https://www.moxa.com/en/support/product-support/security-advisory/mpsa-261910-cve-2026-10828,-cve-2026-10829-use-of-externally-controlled-format-string-and-stack-based-buffer-overflow-v vendor-advisory