CVE-2021-45756 Memory corruption in n/a
A buffer overflow in Asus routers allows attackers to execute arbitrary code via the blocking_request.cgi script.
- 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-2021-45756?
CVE-2021-45756 is a critical memory corruption vulnerability in n/a, published on 23 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Asus RT-AC68U <3.0.0.4.385.20633 and RT-AC5300 <3.0.0.4.384.82072 are affected by a buffer overflow in blocking_request.cgi.
Weakness: CWE-120
Which versions are affected by CVE-2021-45756?
It affects 2 products.
Products include Asus Rt-Ac5300 Firmware, Asus Rt-Ac68u Firmware.
How do I fix CVE-2021-45756?
No fix has been published for CVE-2021-45756 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-2021-45756 being exploited?
There is no known exploitation of CVE-2021-45756 in the wild and no public exploit code.
Sources
Also known as GHSA-h374-84hv-hj85.