CVE-2021-26621 Netis Korea MEX01 Buffer overflow vulnerability
Remote attackers can execute arbitrary code on Netis MEX01 devices via a buffer overflow in the strcpy function.
- 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-2021-26621?
CVE-2021-26621 is a high-severity memory corruption vulnerability in NetU Corp. MEX01, published on 25 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An Buffer Overflow vulnerability leading to remote code execution was discovered in MEX01. Remote attackers can use this vulnerability by using the property that the target program copies parameter values to memory through the strcpy() function.
Weakness: CWE-120
Which versions are affected by CVE-2021-26621?
It affects 1 product.
Products include Netu Mex01 Firmware.
How do I fix CVE-2021-26621?
No fix has been published for CVE-2021-26621 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-2021-26621 being exploited?
There is no known exploitation of CVE-2021-26621 in the wild and no public exploit code.
Sources
Also known as GHSA-8gwh-x546-9265.