CVE-2021-32968: Moxa NPort IAW5000A-I/O Series Serial Device Server Classic Buffer Overflow
First published: Fri Apr 01 2022(Updated: )
Two 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 cause a denial-of-service condition.
Credit: ics-cert@hq.dhs.gov
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Moxa Nport Iaw5150a-6i\/o Firmware | <=2.2 | |
| Moxa Nport Iaw5150a-6i\/o | ||
| Moxa Nport Iaw5150a-12i\/o Firmware | <=2.2 | |
| Moxa Nport Iaw5150a-12i\/o | ||
| Moxa Nport Iaw5250a-6i\/o Firmware | <=2.2 | |
| Moxa Nport Iaw5250a-6i\/o | ||
| Moxa Nport Iaw5250a-12i\/o Firmware | <=2.2 | |
| Moxa Nport Iaw5250a-12i\/o | ||
| Moxa NPort IAW5000A-I/O Series firmware version 2.2 or earlier |
Remedy
Moxa has developed solutions to address these vulnerabilities. Please contact Moxa Technical Support for a security patch. Moxa has also published a security advisory to provide more information.
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Reference Links
Frequently Asked Questions
What is CVE-2021-32968?
CVE-2021-32968 is a vulnerability in the built-in web server in Moxa NPort IAW5000A-I/O Series firmware version 2.2 or earlier that may allow a remote attacker to cause a denial-of-service condition.
What is the severity of CVE-2021-32968?
CVE-2021-32968 has a severity rating of 7.5 (high).
What software is affected by CVE-2021-32968?
Moxa NPort IAW5000A-I/O Series firmware version 2.2 or earlier is affected by CVE-2021-32968.
How can a remote attacker exploit CVE-2021-32968?
A remote attacker can exploit CVE-2021-32968 by causing buffer overflows in the built-in web server of the vulnerable firmware.
Are there any fixes available for CVE-2021-32968?
It is recommended to update the Moxa NPort IAW5000A-I/O Series firmware to version 2.2 or later to fix CVE-2021-32968.
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- agent/title
- agent/weakness
- agent/first-publish-date
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- agent/softwarecombine
- agent/tags
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- collector/ics-cert-advisory
- source/ICS
- agent/software-canonical-lookup
- vendor/moxa
- canonical/moxa nport iaw5150a-6i\/o firmware
- version/moxa nport iaw5150a-6i\/o firmware/2.2
- canonical/moxa nport iaw5150a-6i\/o
- canonical/moxa nport iaw5150a-12i\/o firmware
- version/moxa nport iaw5150a-12i\/o firmware/2.2
- canonical/moxa nport iaw5150a-12i\/o
- canonical/moxa nport iaw5250a-6i\/o firmware
- version/moxa nport iaw5250a-6i\/o firmware/2.2
- canonical/moxa nport iaw5250a-6i\/o
- canonical/moxa nport iaw5250a-12i\/o firmware
- version/moxa nport iaw5250a-12i\/o firmware/2.2
- canonical/moxa nport iaw5250a-12i\/o
- canonical/moxa nport iaw5000a-i/o series firmware version 2.2 or earlier