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CVE-2021-38527

CRITICALCVSS 9.8/10EPSS 1.69%

Last modified

CVE-2021-38527 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 1.69% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.69%

74.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
NetgearCbr40 Firmware< 2.5.0.14
NetgearEx6100 Firmware< 1.0.1.98
NetgearEx6150 Firmware< 1.0.1.98
NetgearEx6250 Firmware< 1.0.0.132
NetgearEx6400 Firmware< 1.0.2.158
NetgearEx6400 Firmware< 1.0.0.132
NetgearEx6410 Firmware< 1.0.0.132
NetgearEx6420 Firmware< 1.0.0.132
NetgearEx7300 Firmware< 1.0.2.158
NetgearEx7320 Firmware< 1.0.0.132
NetgearEx7700 Firmware< 1.0.0.216
NetgearEx8000 Firmware< 1.0.1.232
NetgearR7800 Firmware< 1.0.2.78
NetgearRbk12 Firmware< 2.6.1.44
NetgearRbr10 Firmware< 2.6.1.44
NetgearRbs10 Firmware< 2.6.1.44
NetgearRbk20 Firmware< 2.6.1.38
NetgearRbr20 Firmware< 2.6.1.36
NetgearRbs20 Firmware< 2.6.1.38
NetgearRbk40 Firmware< 2.6.1.38
NetgearRbr40 Firmware< 2.6.1.36
NetgearRbs40 Firmware< 2.6.1.38
NetgearRbk50 Firmware< 2.6.1.40
NetgearRbr50 Firmware< 2.6.1.40
NetgearRbs50 Firmware< 2.6.1.40
NetgearRbk752 Firmware< 3.2.16.6
NetgearRbr750 Firmware< 3.2.16.6
NetgearRbs750 Firmware< 3.2.16.6
NetgearRbk852 Firmware< 3.2.16.6
NetgearRbr850 Firmware< 3.2.16.6
NetgearRbs850 Firmware< 3.2.16.6
NetgearRbs40v Firmware< 2.6.2.4
NetgearRbs50y Firmware< 2.6.1.40
NetgearRbw30 Firmware< 2.6.2.2
NetgearXr500 Firmware< 2.3.2.114

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2021-38527?
CVE-2021-38527 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.69% probability of exploitation in the next 30 days.
How do I fix CVE-2021-38527?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST