CVE-2021-32976 CRITICAL

CVE-2021-32976: Moxa NPort IAW5000A-I/O Series Serial Device Server Stack-based Buffer Overflow

Vendor Moxa
Product NPort IAW5000A-I/O series firmware
Weakness CWE-121
Published April 1, 2022
Last update April 16, 2025
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Five buffer overflows in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2.2 or earlier may allow a remote attacker to initiate a denial-of-service attack and execute arbitrary code.

Key dates

02Disclosure timeline

April 1, 2022 CVE published
April 16, 2025 Record updated