#VU62044 Input validation error in R6400v2 and R6700v3

Vulnerability identifier: #VU62044

Vulnerability risk: Low

CVSSv4.0: 4.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: N/A

CWE-ID: CWE-20

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
R6400v2
Hardware solutions / Routers for home users
R6700v3
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: NETGEAR

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker on the local network can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

R6400v2: before 1.0.4.122

R6700v3: before 1.0.4.122

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External links
https://kb.netgear.com/000064807/Security-Advisory-for-Denial-of-Service-on-Some-Routers-PSV-2021-0022

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.