CVE-2022-27641

moderate-risk
Published 2023-03-29

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.

Do I need to act?

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0.25% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
ADJACENT_NETWORK / LOW complexity

Affected Products (9)

Affected Vendors

Netgear

References (4)

Vendor Advisory https://kb.netgear.com/000064437/Security-Advisory-for-Pre-Authentication-Buffer...
Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-22-544/
Vendor Advisory https://kb.netgear.com/000064437/Security-Advisory-for-Pre-Authentication-Buffer...
Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-22-544/
43
/ 100
moderate-risk
Severity 27/34 · High
Exploitability 1/34 · Minimal
Exposure 15/34 · Moderate