Vulnerability · Published Jun 16, 2026 · Assigned by Moxa

CVE-2026-10828

Medium 6.9

In plain English

A medium-severity security flaw 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 0.3% (higher than 24% of all known vulnerabilities).

Severity (CVSS 4.0)6.9Medium

Exploit odds (30 days)0.3%top 76.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

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-134 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/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