D6400 Firmware
CVE-2021-38534
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 4.8 (MEDIUM). Attack characteristics: network attack vector, low complexity, high privileges required, user interaction required. |
| Exploit ScenarioDerived | A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAI
Certain NETGEAR devices are affected by stored XSS. Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
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 Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. Certain NETGEAR devices are affected by stored XSS. This affects D3600 before 1.0.0.76, D6000 before 1.0.0.76, D6100 before 1.0.0.60, D6200 before 1.1.00.36, D6220 before 1.0.0.52, D6400 before 1.0.0.86, D7000 before 1.0.1.70, D7000v2 before 1.0.0.53, D8500 before 1.0.3.44, DC112A before 1.0.0.42, DGN2200v4 before 1.0.0.110, DGND2200Bv4 before 1.0.0.109, DM200 before 1.0.0.61, JR6150 before 1.0.1.18, PR2000 before 1.0.0.28, R6020 before 1.0.0.42, R6050 before 1.0.1.18, R6080 before 1.0.0.42, R6220 before 1.1.0.80, R6230 before 1.1.0.80, R6250 before 1.0.4.34, R6260 before 1.1.0.64, R6300v2 before 1.0.4.34, R6400 before 1.0.1.46, R6400v2 before 1.0.2.62, R6700 before 1.0.2.6, R6700v2 before 1.2.0.36, R6700v3 before 1.0.2.62, R6800 before 1.2.0.36, R6900 before 1.0.2.4, R6900P before 1.3.1.64, R6900v2 before 1.2.0.36, R7000 before 1.0.9.60, R7000P before 1.3.1.64, R7100LG before 1.0.0.50, R7300DST before 1.0.0.70, R7450 before 1.2.0.36, R7900 before 1.0.3.8, R7900P before 1.4.1.50, R8000 before 1.0.4.28, R8000P before 1.4.1.50, R8300 before 1.0.2.130, R8500 before 1.0.2.130, WNDR3400v3 before 1.0.1.24, WNR2020 before 1.1.0.62, WNR3500Lv2 before 1.2.0.62, XR450 before 2.3.2.40, and XR500 before 2.3.2.40. Affected products include: Netgear D3600 Firmware, Netgear D6000 Firmware, Netgear D6100 Firmware, Netgear D6200 Firmware, Netgear D6220 Firmware. Version information: before 1.0.0.76.
Know when D6400 Firmware gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
Certain NETGEAR devices are affected by stored XSS. This affects D3600 before 1.0.0.76, D6000 before 1.0.0.76, D6100 before 1.0.0.60, D6200 before 1.1.00.36, D6220 before 1.0.0.52, D6400 before 1.0.0.86, D7000 before 1.0.1.70, D7000v2 before 1.0.0.53, D8500 before 1.0.3.44, DC112A before 1.0.0.42, DGN2200v4 before 1.0.0.110, DGND2200Bv4 before 1.0.0.109, DM200 before 1.0.0.61, JR6150 before 1.0.1.18, PR2000 before 1.0.0.28, R6020 before 1.0.0.42, R6050 before 1.0.1.18, R6080 before 1.0.0.42, R6220 before 1.1.0.80, R6230 before 1.1.0.80, R6250 before 1.0.4.34, R6260 before 1.1.0.64, R6300v2 before 1.0.4.34, R6400 before 1.0.1.46, R6400v2 before 1.0.2.62, R6700 before 1.0.2.6, R6700v2 before 1.2.0.36, R6700v3 before 1.0.2.62, R6800 before 1.2.0.36, R6900 before 1.0.2.4, R6900P before 1.3.1.64, R6900v2 before 1.2.0.36, R7000 before 1.0.9.60, R7000P before 1.3.1.64, R7100LG before 1.0.0.50, R7300DST before 1.0.0.70, R7450 before 1.2.0.36, R7900 before 1.0.3.8, R7900P before 1.4.1.50, R8000 before 1.0.4.28, R8000P before 1.4.1.50, R8300 before 1.0.2.130, R8500 before 1.0.2.130, WNDR3400v3 before 1.0.1.24, WNR2020 before 1.1.0.62, WNR3500Lv2 before 1.2.0.62, XR450 before 2.3.2.40, and XR500 before 2.3.2.40.
Threat Intelligence Overview
NVD
CVE.org
EPSS
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Affected Products (CPE)NVD
More in D6400 Firmware
View allCertain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. Rated critical sev
Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. Rated critical severity (CVSS
Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. Rated critical severity (CVSS 9.8),
Certain NETGEAR devices are affected by lack of access control at the function level. Rated critical severity (CVSS 9.8)
Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. Rated critical severity (CVSS
Certain NETGEAR devices are affected by incorrect configuration of security settings. Rated critical severity (CVSS 9.4)
Certain NETGEAR devices are affected by incorrect configuration of security settings. Rated high severity (CVSS 8.8), th
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R640
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R640
Certain NETGEAR devices are affected by command injection by an authenticated user. Rated high severity (CVSS 8.8), this
Certain NETGEAR devices are affected by incorrect configuration of security settings. Rated high severity (CVSS 7.2), th
Certain NETGEAR devices are affected by command injection by an authenticated user. Rated medium severity (CVSS 6.8), th
GitHub PoC
Exploit-DB