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CVE-2021-45527

CRITICALCVSS 9.8/10EPSS 1.13%

Last modified

CVE-2021-45527 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects D6220 before 1.0.0.68, D6400 before 1.0.0.102, D7000v2 before 1.0.0.66, D8500 before 1.0.3.58, DC112A before 1.0.0.54, EX7000 before 1.0.1.94, EX7500 before 1.0.0.72, R6250 before 1.0.4.48, R6300v2 before 1.0.4.52, R6400 before 1.0.1.70, R6400v2 before 1.0.4.102, R6700v3 before 1.0.4.102, R7000 before 1.0.11.116, R7100LG before 1.0.0.64, R7850 before 1.0.5.68, R7900 before 1.0.4.30, R7960P before 1.4.1.68, R8000 before 1.0.4.52, RAX200 before 1.0.2.88, RBS40V before 2.6.2.4, RS400 before 1.5.1.80, XR300 before 1.0.3.56, R7000P before 1.3.2.124, R8000P before 1.4.1.68, R8500 before 1.0.2.144, RAX80 before 1.0.3.102, R6900P before 1.3.2.124, R7900P before 1.4.1.68, R8300 before 1.0.2.144, RAX75 before 1.0.3.102, RBR750 before 3.2.17.12, RBR850 before 3.2.17.12, RBS750 before 3.2.17.12, RBS850 before 3.2.17.12, RBK752 before 3.2.17.12, and RBK852 before 3.2.17.12.. EPSS estimates a 1.13% chance of exploitation in the next 30 days.

Description

Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects D6220 before 1.0.0.68, D6400 before 1.0.0.102, D7000v2 before 1.0.0.66, D8500 before 1.0.3.58, DC112A before 1.0.0.54, EX7000 before 1.0.1.94, EX7500 before 1.0.0.72, R6250 before 1.0.4.48, R6300v2 before 1.0.4.52, R6400 before 1.0.1.70, R6400v2 before 1.0.4.102, R6700v3 before 1.0.4.102, R7000 before 1.0.11.116, R7100LG before 1.0.0.64, R7850 before 1.0.5.68, R7900 before 1.0.4.30, R7960P before 1.4.1.68, R8000 before 1.0.4.52, RAX200 before 1.0.2.88, RBS40V before 2.6.2.4, RS400 before 1.5.1.80, XR300 before 1.0.3.56, R7000P before 1.3.2.124, R8000P before 1.4.1.68, R8500 before 1.0.2.144, RAX80 before 1.0.3.102, R6900P before 1.3.2.124, R7900P before 1.4.1.68, R8300 before 1.0.2.144, RAX75 before 1.0.3.102, RBR750 before 3.2.17.12, RBR850 before 3.2.17.12, RBS750 before 3.2.17.12, RBS850 before 3.2.17.12, RBK752 before 3.2.17.12, and RBK852 before 3.2.17.12.

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
1.13%

62.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
NetgearRbk752 Firmware< 3.2.17.12
NetgearRbr750 Firmware< 3.2.17.12
NetgearRbs750 Firmware< 3.2.17.12
NetgearRbk852 Firmware< 3.2.17.12
NetgearRbr850 Firmware< 3.2.17.12
NetgearRbs850 Firmware< 3.2.17.12
NetgearD6220 Firmware< 1.0.0.68
NetgearD6400 Firmware< 1.0.0.102
NetgearD7000v2 Firmware< 1.0.0.66
NetgearD8500 Firmware< 1.0.3.58
NetgearDc112a Firmware< 1.0.0.54
NetgearEx7000 Firmware< 1.0.1.94
NetgearEx7500 Firmware< 1.0.0.72
NetgearR6250 Firmware< 1.0.4.48
NetgearR6300v2 Firmware< 1.0.4.52
NetgearR6400 Firmware< 1.0.1.70
NetgearR6400v2 Firmware< 1.0.4.102
NetgearR6700v3 Firmware< 1.0.4.102
NetgearR7000 Firmware< 1.0.11.116
NetgearR7100lg Firmware< 1.0.0.64
NetgearR7850 Firmware< 1.0.5.68
NetgearR7900 Firmware< 1.0.4.30
NetgearR7960p Firmware< 1.4.1.68
NetgearR8000 Firmware< 1.0.4.52
NetgearRax200 Firmware< 1.0.2.88
NetgearRax75 Firmware< 1.0.3.102
NetgearRax80 Firmware< 1.0.3.102
NetgearRbs40v Firmware< 2.6.2.4
NetgearXr300 Firmware< 1.0.3.56
NetgearRs400 Firmware< 1.5.1.80
NetgearR7000p Firmware< 1.3.2.124
NetgearR8000p Firmware< 1.4.1.68
NetgearR8500 Firmware< 1.0.2.144
NetgearR6900p Firmware< 1.3.2.124
NetgearR7900p Firmware< 1.4.1.68
NetgearR8300 Firmware< 1.0.2.144

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-45527?
Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects D6220 before 1.0.0.68, D6400 before 1.0.0.102, D7000v2 before 1.0.0.66, D8500 before 1.0.3.58, DC112A before 1.0.0.54, EX7000 before 1.0.1.94, EX7500 before 1.0.0.72, R6250 before 1.0.4.48, R6300v2 before 1.0.4.52, R6400 before 1.0.1.70, R6400v2 before 1.0.4.102, R6700v3 before 1.0.4.102, R7000 before 1.0.11.116, R7100LG before 1.0.0.64, R7850 before 1.0.5.68, R7900 before 1.0.4.30, R7960P before 1.4.1.68, R8000 before 1.0.4.52, RAX200 before 1.0.2.88, RBS40V before 2.6.2.4, RS400 before 1.5.1.80, XR300 before 1.0.3.56, R7000P before 1.3.2.124, R8000P before 1.4.1.68, R8500 before 1.0.2.144, RAX80 before 1.0.3.102, R6900P before 1.3.2.124, R7900P before 1.4.1.68, R8300 before 1.0.2.144, RAX75 before 1.0.3.102, RBR750 before 3.2.17.12, RBR850 before 3.2.17.12, RBS750 before 3.2.17.12, RBS850 before 3.2.17.12, RBK752 before 3.2.17.12, and RBK852 before 3.2.17.12.
How severe is CVE-2021-45527?
CVE-2021-45527 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.13% probability of exploitation in the next 30 days.
How do I fix CVE-2021-45527?
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.

Are you affected by CVE-2021-45527?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST