CVE-2021-45527 Memory corruption in n/a
Authenticated attackers can exploit a buffer overflow in NETGEAR router firmware to execute arbitrary code or escalate privileges.
- 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-2021-45527?
CVE-2021-45527 is a critical memory corruption vulnerability in Netgear D6220 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 authenticated user. This affects D6220 before 1.0.0.68, D6400 before 1.0.0.102, D7000v2 before 1.0.0.66, D8500 before 1.0.3.58, DC112A before 1.0.0.54, EX7000 before 1.0.1.94, EX7500 before 1.0.0.72, R6250 before 1.0.4.48, R6300v2 before 1.0.4.52, R6400 before 1.0.1.70, R6400v2 before 1.0.4.102, R6700v3 before 1.0.4.102, R7000 before 1.0.11.116, R7100LG before 1.0.0.64, R7850 before 1.0.5.68, R7900 before 1.0.4.30, R7960P before 1.4.1.68, R8000 before 1.0.4.52, RAX200 before 1.0.2.88, RBS40V before 2.6.2.4, RS400 before 1.5.1.80, XR300 before 1.0.3.56, R7000P before 1.3.2.124, R8000P before 1.4.1.68, R8500 before 1.0.2.144, RAX80 before 1.0.3.102, R6900P before 1.3.2.124, R7900P before 1.4.1.68, R8300 before 1.0.2.144, RAX75 before 1.0.3.102, RBR750 before 3.2.17.12, RBR850 before 3.2.17.12, RBS750 before 3.2.17.12, RBS850 before 3.2.17.12, RBK752 before 3.2.17.12, and RBK852 before 3.2.17.12.
Weakness: CWE-120
Which versions are affected by CVE-2021-45527?
It affects 36 products.
Products include Netgear D6220 Firmware, Netgear D6400 Firmware, Netgear D7000v2 Firmware, Netgear D8500 Firmware, Netgear Dc112a Firmware, Netgear Ex7000 Firmware and 30 more.
How do I fix CVE-2021-45527?
No fix has been published for CVE-2021-45527 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-2021-45527 being exploited?
There is no known exploitation of CVE-2021-45527 in the wild and no public exploit code.
Other vulnerabilities in Netgear D6220 Firmware
Sources
Also known as GHSA-h529-hgpf-hm97.