Vulnerability identifier: #VU70116

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
R6220
Hardware solutions / Routers & switches, VoIP, GSM, etc
R6230
Hardware solutions / Routers & switches, VoIP, GSM, etc
R6850
Hardware solutions / Routers & switches, VoIP, GSM, etc
R6260
Hardware solutions / Routers & switches, VoIP, GSM, etc
R6330
Hardware solutions / Routers & switches, VoIP, GSM, etc
R6350
Hardware solutions / Routers & switches, VoIP, GSM, etc
R6020
Hardware solutions / Routers & switches, VoIP, GSM, etc
R6080
Hardware solutions / Routers & switches, VoIP, GSM, etc
R6120
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor:

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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External links
http://kb.netgear.com/000065356/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-PSV-2021-0347

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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 Internet.

Is there known malware, which exploits this vulnerability?

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