CVE-2021-45611 Memory corruption in n/a

Critical 9.6 Published 26 Dec 2021 Updated 4 Aug 2024

Unauthenticated attackers can exploit a buffer overflow in various NETGEAR routers to execute arbitrary code.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-45611?

CVE-2021-45611 is a critical memory corruption vulnerability in Netgear R6400 Firmware, published on 26 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects DC112A before 1.0.0.52, R6400 before 1.0.1.68, RAX200 before 1.0.3.106, WNDR3400v3 before 1.0.1.38, XR300 before 1.0.3.68, R8500 before 1.0.2.144, RAX75 before 1.0.3.106, R8300 before 1.0.2.144, and RAX80 before 1.0.3.106.

Weakness: CWE-120

Which versions are affected by CVE-2021-45611?

It affects 9 products.

Products include Netgear Dc112a Firmware, Netgear R6400 Firmware, Netgear R8300 Firmware, Netgear R8500 Firmware, Netgear Rax200 Firmware, Netgear Rax75 Firmware and 3 more.

How do I fix CVE-2021-45611?

No fix has been published for CVE-2021-45611 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-2021-45611 being exploited?

There is no known exploitation of CVE-2021-45611 in the wild and no public exploit code.

All Netgear R6400 Firmware vulnerabilities

Sources

Also known as GHSA-5m6r-6p2x-4hr9.