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Vulnerability record · CVE-2022-27641 · published 29 March 2023

CVE-2022-27641: Netgear d7800 firmware integer overflow vulnerability

Netgear · D7800 Firmware

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.

8.8 CVSS 3.1 High EPSS 1.2% · top 31.8% CWE-190 · Integer overflow
8.8CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
9Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

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.

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

Affected products

9 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-27641), CISA KEV, FIRST EPSS (scores of 2026-10-05). This page is refreshed as NVD updates the record.