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Ex3700 Firmware CVE-2021-32122

HIGH
Cross-Site Request Forgery (CSRF) (CWE-352)
2021-08-11 cve@mitre.org
8.0
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V3 - Web Frontend Security Anti-CSRF tokens, SameSite cookies
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 8.0 (HIGH). Attack characteristics: adjacent network attack vector, low complexity, no privileges required, user interaction required.

Exploit ScenarioDerived

An attacker could exploit this vulnerability to trick authenticated users into performing unintended actions. No authentication is required to exploit this vulnerability.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAI

Certain NETGEAR devices are affected by CSRF. Rated high severity (CVSS 8.0), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement anti-CSRF tokens, validate Origin/Referer headers, use SameSite cookie attribute.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Cross-Site Request Forgery (CSRF) (CWE-352), which allows attackers to trick authenticated users into performing unintended actions. Certain NETGEAR devices are affected by CSRF. This affects EX3700 before 1.0.0.90, EX3800 before 1.0.0.90, EX6120 before 1.0.0.64, and EX6130 before 1.0.0.44. Affected products include: Netgear Ex3700 Firmware, Netgear Ex3800 Firmware, Netgear Ex6120 Firmware, Netgear Ex6130 Firmware. Version information: before 1.0.0.90.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.0 HIGH
AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

Certain NETGEAR devices are affected by CSRF. This affects EX3700 before 1.0.0.90, EX3800 before 1.0.0.90, EX6120 before 1.0.0.64, and EX6130 before 1.0.0.44.

Threat Intelligence Overview

EPSS Score
0.4%
Top 65% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.4%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Controlled
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

40
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +40
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Request Forgery exploits the automatic credential inclusion behavior of web browsers.

Affected Products (CPE)NVD

cpe:2.3:o:netgear:ex3700_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex3800_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex6120_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex6130_firmware:*:*:*:*:*:*:*:*
CVE-2025-5934 HIGH POC
8.8 Jun 10

A critical stack-based buffer overflow vulnerability (CVE-2025-5934) exists in Netgear EX3700 wireless extenders up to v

CVE-2024-35522 HIGH POC
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Netgear EX3700 ' AC750 WiFi Range Extender Essentials Edition before 1.0.0.98 contains an authenticated command injectio

CVE-2021-45621 CRITICAL
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Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. Rated critical severity (CVSS

CVE-2021-45512 CRITICAL
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Certain NETGEAR devices are affected by weak cryptography. Rated critical severity (CVSS 9.8), this vulnerability is rem

CVE-2020-35796 CRITICAL
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Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. Rated critical severity (CVSS

CVE-2020-35800 CRITICAL
9.4 Dec 30

Certain NETGEAR devices are affected by incorrect configuration of security settings. Rated critical severity (CVSS 9.4)

CVE-2021-45641 HIGH
8.8 Dec 26

Certain NETGEAR devices are affected by incorrect configuration of security settings. Rated high severity (CVSS 8.8), th

CVE-2021-34991 HIGH
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This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R640

CVE-2021-45640 HIGH
7.2 Dec 26

Certain NETGEAR devices are affected by incorrect configuration of security settings. Rated high severity (CVSS 7.2), th

CVE-2024-35519 MEDIUM
6.8 Oct 14

Netgear EX6120 v1.0.0.68, Netgear EX6100 v1.0.2.28, and Netgear EX3700 v1.0.0.96 are vulnerable to command injection in

CVE-2021-45533 MEDIUM
6.8 Dec 26

Certain NETGEAR devices are affected by command injection by an authenticated user. Rated medium severity (CVSS 6.8), th

CVE-2021-45639 MEDIUM
6.1 Dec 26

Certain NETGEAR devices are affected by reflected XSS. Rated medium severity (CVSS 6.1), this vulnerability is remotely

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