Home/CVE/This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R670
CVE

CVE-2022-27641

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R670

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.

HIGH · CVSS 8.8 EPSS 0.00821
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-190Integer Overflow or Wraparound
▤

Affected Products & Versions

9
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
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · zdi-disclosures@trendmicro.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD29 Mar 2023 · 07:15 PM
CVSS VectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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 AdvisoryVDB Entry
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