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Status published
Critical
CVE-2021-32976
Moxa NPort IAW5000A-I/O Series Serial Device Server Stack-based Buffer Overflow
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Konstantin Kondratev, Evgeniy Druzhinin and Ilya Karpov of Rostelecom-Solar reported these vulnerabilities to Moxa.
References
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Affected Vendor
Moxa
View all reports →Affected Software
NPort IAW5000A-I/O series firmware
Vulnerable Versions:
unspecified
Timeline
Official Publish:
April 1st, 2022
Last Modified:
April 16th, 2025
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H