CVE-2021-32974
Moxa NPort IAW5000A-I/O Series Serial Device Server Improper Input Validation
Improper input validation 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 execute commands.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Moxa NPort IAW5000A-I/O Series Serial Device Server Improper Input Validation
Improper input validation 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 execute commands.
- Record
CVE-2021-32974- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
EUVDEUVD-2021-19695
Improper input validation 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 execute commands.
- Record
EUVD-2021-19695- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-w2p9-865g-3w64
Improper input validation in the built-in web server in Moxa NPort IAW5000A-I/O series firmware...
Improper input validation 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 execute commands.
- Record
GHSA-w2p9-865g-3w64- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-20, CWE-78
- Updated
- 2026-11-02
NVD
Improper input validation 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 execute commands.
- Record
CVE-2021-32974- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-20, CWE-78
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-32974 is a critical vulnerability (CVSS 9.8) in Moxa Nport Iaw5000a-i/o Series Firmware, published April 1, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.70%, the 86th percentile. No source names a fixed version.