This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6700v3 routers.

published 2023-03-29 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-32146

cvss: 8.8; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits: 0; none known

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6700v3 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within readycloud_control.cgi. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15762.

Patch / fix

fixed in 20

netgear lax20_firmware 1.1.6.34
netgear r6400_firmware 1.0.4.126
netgear r6700_firmware 1.0.4.126
netgear r7000_firmware 1.0.11.134
netgear r7850_firmware 1.0.5.84
netgear r7900p_firmware 1.4.3.88
netgear r7960p_firmware 1.4.3.88
netgear r8000_firmware 1.0.4.84
netgear r8000p_firmware 1.4.3.88
netgear r8500_firmware 1.0.2.158
netgear rax15_firmware 1.0.10.110
netgear rax20_firmware 1.0.10.110
netgear rax200_firmware 1.0.6.138
netgear rax35_firmware 1.0.10.110
netgear rax38_firmware 1.0.10.110
netgear rax40_firmware 1.0.10.110
netgear rax42_firmware 1.0.10.110
netgear rax43_firmware 1.0.10.110
netgear rax45_firmware 1.0.10.110
netgear rax48_firmware 1.0.10.110

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 20 mo ago (2025-02-18)

Exploit prediction

1.28% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	8.8	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	8.8	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

NETGEAR R6700v3

Classification

Weakness

CWE-306 Missing Authentication for Critical Functionality
CWE-697 Incorrect Comparison

References

kb.netgear.com /000064722/Security-Advisory-for-Sensitive-Information-Disclosure-on-Some-Routers-and-Fixed-Wireless-Products-
vendor-advisory
zerodayinitiative.com /advisories/ZDI-22-522/
third-party-advisory, vdb-entry

Sources

CVE List CVE-2022-27645
NVD CVE-2022-27645

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Summary