Vulnerability Monitor

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CVE-2021-38527

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before 2.5.0.14, EX6100v2 before 1.0.1.98, EX6150v2 before 1.0.1.98, EX6250 before 1.0.0.132, EX6400 before 1.0.2.158, EX6400v2 before 1.0.0.132, EX6410 before 1.0.0.132, EX6420 before 1.0.0.132, EX7300 before 1.0.2.158, EX7300v2 before 1.0.0.132, EX7320 before 1.0.0.132, EX7700 before 1.0.0.216, EX8000 before 1.0.1.232, R7800 before 1.0.2.78, RBK12 before 2.6.1.44, RBR10 before 2.6.1.44, RBS10 before 2.6.1.44, RBK20 before 2.6.1.38, RBR20 before 2.6.1.36, RBS20 before 2.6.1.38, RBK40 before 2.6.1.38, RBR40 before 2.6.1.36, RBS40 before 2.6.1.38, RBK50 before 2.6.1.40, RBR50 before 2.6.1.40, RBS50 before 2.6.1.40, RBK752 before 3.2.16.6, RBR750 before 3.2.16.6, RBS750 before 3.2.16.6, RBK852 before 3.2.16.6, RBR850 before 3.2.16.6, RBS850 before 3.2.16.6, RBS40V before 2.6.2.4, RBS50Y before 2.6.1.40, RBW30 before 2.6.2.2, and XR500 before 2.3.2.114.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.1, indicating it requires adjacent network access with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), for affected systems. Impacting 68 products from netgear, from netgear, from netgear and 65 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2021-08-11T00:16:18.947

Last Modified

2024-11-21T06:17:20.593

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.1 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-77
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System netgear cbr40_firmware < 2.5.0.14 Yes
Hardware netgear cbr40 - No
Operating System netgear ex6100_firmware < 1.0.1.98 Yes
Hardware netgear ex6100 v2 No
Operating System netgear ex6150_firmware < 1.0.1.98 Yes
Hardware netgear ex6150 v2 No
Operating System netgear ex6250_firmware < 1.0.0.132 Yes
Hardware netgear ex6250 - No
Operating System netgear ex6400_firmware < 1.0.2.158 Yes
Hardware netgear ex6400 - No
Operating System netgear ex6400_firmware < 1.0.0.132 Yes
Hardware netgear ex6400 v2 No
Operating System netgear ex6410_firmware < 1.0.0.132 Yes
Hardware netgear ex6410 - No
Operating System netgear ex6420_firmware < 1.0.0.132 Yes
Hardware netgear ex6420 - No
Operating System netgear ex7300_firmware < 1.0.2.158 Yes
Hardware netgear ex7300 - No
Operating System netgear ex7300_firmware < 1.0.2.158 Yes
Hardware netgear ex7300 v2 No
Operating System netgear ex7320_firmware < 1.0.0.132 Yes
Hardware netgear ex7320 - No
Operating System netgear ex7700_firmware < 1.0.0.216 Yes
Hardware netgear ex7700 - No
Operating System netgear ex8000_firmware < 1.0.1.232 Yes
Hardware netgear ex8000 - No
Operating System netgear r7800_firmware < 1.0.2.78 Yes
Hardware netgear r7800 - No
Operating System netgear rbk12_firmware < 2.6.1.44 Yes
Hardware netgear rbk12 - No
Operating System netgear rbr10_firmware < 2.6.1.44 Yes
Hardware netgear rbr10 - No
Operating System netgear rbs10_firmware < 2.6.1.44 Yes
Hardware netgear rbs10 - No
Operating System netgear rbk20_firmware < 2.6.1.38 Yes
Hardware netgear rbk20 - No
Operating System netgear rbr20_firmware < 2.6.1.36 Yes
Hardware netgear rbr20 - No
Operating System netgear rbs20_firmware < 2.6.1.38 Yes
Hardware netgear rbs20 - No
Operating System netgear rbk40_firmware < 2.6.1.38 Yes
Hardware netgear rbk40 - No
Operating System netgear rbr40_firmware < 2.6.1.36 Yes
Hardware netgear rbr40 - No
Operating System netgear rbs40_firmware < 2.6.1.38 Yes
Hardware netgear rbs40 - No
Operating System netgear rbk50_firmware < 2.6.1.40 Yes
Hardware netgear rbk50 - No
Operating System netgear rbr50_firmware < 2.6.1.40 Yes
Hardware netgear rbr50 - No
Operating System netgear rbs50_firmware < 2.6.1.40 Yes
Hardware netgear rbs50 - No
Operating System netgear rbk752_firmware < 3.2.16.6 Yes
Hardware netgear rbk752 - No
Operating System netgear rbr750_firmware < 3.2.16.6 Yes
Hardware netgear rbr750 - No
Operating System netgear rbs750_firmware < 3.2.16.6 Yes
Hardware netgear rbs750 - No
Operating System netgear rbk852_firmware < 3.2.16.6 Yes
Hardware netgear rbk852 - No
Operating System netgear rbr850_firmware < 3.2.16.6 Yes
Hardware netgear rbr850 - No
Operating System netgear rbs850_firmware < 3.2.16.6 Yes
Hardware netgear rbs850 - No
Operating System netgear rbs40v_firmware < 2.6.2.4 Yes
Hardware netgear rbs40v - No
Operating System netgear rbs50y_firmware < 2.6.1.40 Yes
Hardware netgear rbs50y - No
Operating System netgear rbw30_firmware < 2.6.2.2 Yes
Hardware netgear rbw30 - No
Operating System netgear xr500_firmware < 2.3.2.114 Yes
Hardware netgear xr500 - No
References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For netgear's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.