CVE-2022-27641

Root code execution via NetUSB integer overflow

Published Mar 29, 2023 · Updated Feb 18, 2025

Integer overflow in the NetUSB module in NETGEAR R6700v3 1.0.4.120_10.0.91 allows remote attackers to execute root code. NetUSB fails to validate user-supplied data before an allocation-size calculation, allowing integer wraparound and an undersized buffer. Access to an adjacent network is required, but authentication and user interaction are not; successful exploitation runs arbitrary code as root.

CVSS severity8.8
High
EPSS probability1.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in the NetUSB module in NETGEAR R6700v3 1.0.4.120_10.0.91 allows remote attackers to execute root code. NetUSB fails to validate user-supplied data before an allocation-size calculation, allowing integer wraparound and an undersized buffer. Access to an adjacent network is required, but authentication and user interaction are not; successful exploitation runs arbitrary code as root.

The record

CVE
CVE-2022-27641
Published
Mar 29, 2023
Updated
Feb 18, 2025
Vendor
NETGEAR
Product
R6700v3
Classifications
CWE-190, T1210
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.4.120_10.0.91

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

NETGEAR · R6700v3version=1.0.4.120_10.0.91

Published CVSS scores

8.8Zero Day InitiativeCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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