CVE-2022-27641 Integer overflow in R6700v3
Network-adjacent attackers can execute arbitrary code as root on NETGEAR R6700v3 routers via an integer overflow in the NetUSB module.
- 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-2022-27641?
CVE-2022-27641 is a high-severity vulnerability in Netgear D7800 Firmware, published on 29 Mar 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the NetUSB module. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15806.
Weakness: CWE-190
Which versions are affected by CVE-2022-27641?
It affects 9 products.
Products include Netgear D7800 Firmware, Netgear Ex6200 Firmware, Netgear Ex8000 Firmware, Netgear R6220 Firmware, Netgear R6230 Firmware, Netgear R6400 Firmware and 3 more.
How do I fix CVE-2022-27641?
No fix has been published for CVE-2022-27641 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-27641 being exploited?
There is no known exploitation of CVE-2022-27641 in the wild and no public exploit code.
Other vulnerabilities in Netgear D7800 Firmware
Sources
Also known as GHSA-48fv-6rrf-3cqx.