CVE-2021-45540

HIGH

8.4

CVSS Score

Published: December 26, 2021 at 12:54 AM UTC

Updated: June 17, 2026 at 04:13 AM UTC

26 products affected across 1 vendorR7000 FirmwareR8000 FirmwareR7900 Firmware

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Severity

HIGH8.4

Exploit prediction

EPSS 0.6%

Description

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects R7000 before 1.0.11.126, R7900 before 1.0.4.46, R7900P before 1.4.2.84, R7960P before 1.4.2.84, R8000 before 1.0.4.74, R8000P before 1.4.2.84, RAX200 before 1.0.3.106, MR60 before 1.0.6.110, RAX45 before 1.0.2.66, RAX80 before 1.0.3.106, MS60 before 1.0.6.110, RAX50 before 1.0.2.66, and RAX75 before 1.0.3.106.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

MR60 Firmware · NETGEAR

95%

v < 1.0.6.110

Affected range stops below 1.0.6.110, so it looks safe — our inference, not a vendor statement

netgear-mr60 (same device)

MS60 Firmware · NETGEAR

95%

v < 1.0.6.110

Affected range stops below 1.0.6.110, so it looks safe — our inference, not a vendor statement

netgear-ms60 (same device)

R7000 Firmware · NETGEAR

95%

v < 1.0.11.126

Affected range stops below 1.0.11.126, so it looks safe — our inference, not a vendor statement

netgear-r7000 (same device)

R7900 Firmware · NETGEAR

95%

v < 1.0.4.46

Affected range stops below 1.0.4.46, so it looks safe — our inference, not a vendor statement

netgear-r7900 (same device)

R7900P Firmware · NETGEAR

95%

v < 1.4.2.84

Affected range stops below 1.4.2.84, so it looks safe — our inference, not a vendor statement

netgear-r7900p (same device)

R7960P Firmware · NETGEAR

95%

v < 1.4.2.84

Affected range stops below 1.4.2.84, so it looks safe — our inference, not a vendor statement

netgear-r7960p (same device)

R8000 Firmware · NETGEAR

95%

v < 1.0.4.74

Affected range stops below 1.0.4.74, so it looks safe — our inference, not a vendor statement

netgear-r8000 (same device)

R8000P Firmware · NETGEAR

95%

v < 1.4.2.84

Affected range stops below 1.4.2.84, so it looks safe — our inference, not a vendor statement

netgear-r8000p (same device)

RAX200 Firmware · NETGEAR

95%

v < 1.0.3.106

Affected range stops below 1.0.3.106, so it looks safe — our inference, not a vendor statement

netgear-rax200 (same device)

RAX45 Firmware · NETGEAR

95%

v < 1.0.2.66

Affected range stops below 1.0.2.66, so it looks safe — our inference, not a vendor statement

netgear-rax45 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://kb.netgear.com/000064477/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-and-WiFi-Systems-PSV-2020-0196

References (1)

x_refsource_MISCPatchVendor Advisory

Source: [email protected]

https://kb.netgear.com/000064477/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-and-WiFi-Systems-PSV-2020-0196

CVSS

8.4HIGHmitre

Attack Vector: ADJACENT_NETWORK
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: CHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-77

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