CVE-2021-34236 Memory corruption in n/a
Remote attackers can execute arbitrary code or cause denial of service on Netgear R8000 routers via a buffer overflow in the account creation endpoint.
- 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-2021-34236?
CVE-2021-34236 is a critical memory corruption vulnerability in Netgear R8000 Firmware, published on 7 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Buffer Overflow in Netgear R8000 Router with firmware v1.0.4.56 allows remote attackers to execute arbitrary code or cause a denial-of-service by sending a crafted POST to '/bd_genie_create_account.cgi' with a sufficiently long parameter 'register_country'.
Weakness: CWE-120
Which versions are affected by CVE-2021-34236?
It affects 1 product.
Products include Netgear R8000 Firmware.
How do I fix CVE-2021-34236?
No fix has been published for CVE-2021-34236 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-2021-34236 being exploited?
There is no known exploitation of CVE-2021-34236 in the wild and no public exploit code.
Other vulnerabilities in Netgear R8000 Firmware
Sources
Also known as GHSA-vfq9-7wg3-4mjx.