title: NPort W2150A/W2250A Series Web Server Stack-based Buffer Overflow Vulnerability
description: A stack-based buffer overflow in the built-in web server in Moxa NPort W2150A/W2250A Series firmware version 2.3 and prior allows a remote attacker to exploit the vulnerability by sending crafted payload to the web service. Successful exploitation of the vulnerability could result in denial of service.
problem types: CWE-121: Stack-based Buffer Overflow
affected:
{
defaultStatus: unaffected
product: NPort W2150A/W2250A Series
vendor: Moxa
versions:
lessThanOrEqual: 2.3, status: affected, version: 1.0, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 8.2
baseSeverity: HIGH
confidentialityImpact: NONE
integrityImpact: LOW
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
version: 3.1
]
format: CVSS
scenarios: GENERAL
solutions: Moxa has developed appropriate solutions to address the vulnerabilities. The solutions for affected products are shown below.
*  NPort W2150A/W2250A Series: Please contact Moxa Technical Support for a security patch.