VDB-224497 · CVE-2022-27644 · ZDI-22-520

Netgear R6700v3 1.0.4.120_10.0.91 HTTPS certificate validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.2	$5k-$25k	0.00

Summaryinfo

A vulnerability was found in Netgear R6700v3 1.0.4.120_10.0.91. It has been rated as critical. This impacts an unknown function of the component HTTPS Handler. This manipulation causes certificate validation. This vulnerability is tracked as CVE-2022-27644. The attack is only possible within the local network. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in Netgear R6700v3 1.0.4.120_10.0.91 (Wireless LAN Software). Affected by this vulnerability is an unknown function of the component HTTPS Handler. The manipulation with an unknown input leads to a certificate validation vulnerability. The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

This vulnerability allows network-adjacent attackers to compromise the integrity of downloaded information 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 downloading of files via HTTPS. The issue results from the lack of proper validation of the certificate presented by the server. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-15797.

The weakness was disclosed 03/30/2023 as ZDI-22-520. The advisory is shared at zerodayinitiative.com. This vulnerability is known as CVE-2022-27644 since 03/22/2022. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 05/14/2026). MITRE ATT&CK project uses the attack technique T1587.003 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-32145). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Wireless LAN Software

Vendor

Netgear

Name

R6700v3

Version

1.0.4.120_10.0.91

License

commercial

Website

Vendor: https://www.netgear.com/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.2

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 5.0
CNA Vector (Zero Day Initiative): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/22/2022 🔍
03/30/2023 +372 days 🔍
03/30/2023 +0 days 🔍
05/14/2026 +1141 days 🔍

Sourcesinfo

Vendor: netgear.com

Advisory: ZDI-22-520
Status: Not defined

CVE: CVE-2022-27644 (🔍)
GCVE (CVE): GCVE-0-2022-27644
GCVE (VulDB): GCVE-100-224497
EUVD: 🔍

Entryinfo

Created: 03/30/2023 09:27
Updated: 05/14/2026 09:31
Changes: 03/30/2023 09:27 (50), 04/20/2023 08:18 (11), 05/14/2026 09:31 (16)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.