CVE-2022-27641

Name: CVE-2022-27641
Creator: NVD / NIST
Published: 2023-03-29T19:15:08.327+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.23%

Last modified Jun 17, 2026

CVE-2022-27641 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 1.23% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.23%

65.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Netgear	D7800 Firmware	< 1.0.1.68
Netgear	Ex6200 Firmware	< 1.0.1.90
Netgear	Ex8000 Firmware	< 1.0.1.240
Netgear	R6220 Firmware	< 1.1.0.112
Netgear	R6230 Firmware	< 1.1.0.112
Netgear	R6400 Firmware	< 1.0.4.122
Netgear	R6700 Firmware	< 1.0.4.122
Netgear	R7000 Firmware	< 1.0.11.130
Netgear	R7800 Firmware	< 1.0.2.90

References

https://kb.netgear.com/000064437/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Multiple-Products-PSV-2021-0278Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-544/Third Party Advisory, VDB Entry
https://kb.netgear.com/000064437/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Multiple-Products-PSV-2021-0278Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-544/Third Party Advisory, VDB Entry

Timeline

Published: Mar 29, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-27641?

How severe is CVE-2022-27641?

CVE-2022-27641 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.23% probability of exploitation in the next 30 days.

How do I fix CVE-2022-27641?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-27641?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST