CVE-2021-32968 Moxa NPort IAW5000A-I/O Series Serial Device Server Classic Buffer Overflow
Remote attackers can cause denial of service via buffer overflows in the web server of Moxa NPort IAW5000A-I/O devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-32968?
CVE-2021-32968 is a high-severity memory corruption vulnerability in Moxa NPort IAW5000A-I/O Series firmware, published on 1 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-120
Which versions are affected by CVE-2021-32968?
It affects 4 products.
Products include Moxa Nport Iaw5150a-12i\/O Firmware, Moxa Nport Iaw5150a-6i\/O Firmware, Moxa Nport Iaw5250a-12i\/O Firmware, Moxa Nport Iaw5250a-6i\/O Firmware.
How do I fix CVE-2021-32968?
No fix has been published for CVE-2021-32968 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-32968 being exploited?
There is no known exploitation of CVE-2021-32968 in the wild and no public exploit code.
Other vulnerabilities in Moxa NPort IAW5000A-I/O Series firmware
Sources
Also known as GHSA-hmp7-5xvh-34hr.