What’s Vulnerable › Vulnerabilities

CVE-2021-45597

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-12-26 · updated 2026-06-17
• Weakness: CWE-77

Description

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects CBR40 before 2.5.0.24, CBR750 before 4.6.3.6, RBR850 before 3.2.17.12, RBS850 before 3.2.17.12, and RBS850 before 3.2.17.12.

Affected products

• NETGEAR Cbr40 Firmware: before 2.5.0.24 — fixed in 2.5.0.24
• NETGEAR Cbr750 Firmware: before 4.6.3.6 — fixed in 4.6.3.6
• NETGEAR Rbk852 Firmware: before 3.2.17.12 — fixed in 3.2.17.12
• NETGEAR Rbr850 Firmware: before 3.2.17.12 — fixed in 3.2.17.12
• NETGEAR Rbs850 Firmware: before 3.2.17.12 — fixed in 3.2.17.12

How to fix

Upgrade to a fixed version: NETGEAR Cbr40 Firmware 2.5.0.24; NETGEAR Cbr750 Firmware 4.6.3.6; NETGEAR Rbk852 Firmware 3.2.17.12; NETGEAR Rbr850 Firmware 3.2.17.12; NETGEAR Rbs850 Firmware 3.2.17.12. Check the vendor advisory for mitigations.

References

• https://kb.netgear.com/000064142/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-WiFi-Systems-PSV-2020-0539
• https://kb.netgear.com/000064142/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-WiFi-Systems-PSV-2020-0539

Get alerted when CVE-2021-45597 or the next vulnerability affects your stack