CVE-2021-32976

Moxa NPort IAW5000A-I/O Series Serial Device Server Stack-based Buffer Overflow

State: Published
Severity: 9.8 Critical
Published: Apr 1, 2022
Updated: Apr 16, 2025
Reserved: May 13, 2021

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	icscert

Weaknesses

CWE-121 Stack-based Buffer Overflow

Affected Products

Product	Versions
NPort IAW5000A-I/O series firmwareMoxa	2.2 and earlierAffected

References

https://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01
https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities

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