CVE-2021-45602

HIGH

7.8

CVSS Score

Published: December 26, 2021 at 12:38 AM UTC

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

36 products affected across 1 vendorR7800 FirmwareR9000 FirmwareD7800 Firmware

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Severity

HIGH7.8

Exploit prediction

EPSS 0.7%

Description

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects D7800 before 1.0.1.66, EX2700 before 1.0.1.68, WN3000RPv2 before 1.0.0.90, WN3000RPv3 before 1.0.2.100, LBR1020 before 2.6.5.20, LBR20 before 2.6.5.32, R6700AX before 1.0.10.110, R7800 before 1.0.2.86, R8900 before 1.0.5.38, R9000 before 1.0.5.38, RAX10 before 1.0.10.110, RAX120v1 before 1.2.3.28, RAX120v2 before 1.2.3.28, RAX70 before 1.0.10.110, RAX78 before 1.0.10.110, XR450 before 2.3.2.130, XR500 before 2.3.2.130, and XR700 before 1.0.1.46.

Affected

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

D7800 Firmware · NETGEAR

95%

v < 1.0.1.66

Affected range stops below 1.0.1.66, so it looks safe — our inference, not a vendor statement

netgear-d7800 (same device)

EX2700 Firmware · NETGEAR

95%

v < 1.0.1.68

Affected range stops below 1.0.1.68, so it looks safe — our inference, not a vendor statement

netgear-ex2700 (same device)

LBR1020 Firmware · NETGEAR

95%

v < 2.6.5.20

Affected range stops below 2.6.5.20, so it looks safe — our inference, not a vendor statement

netgear-lbr1020 (same device)

LBR20 Firmware · NETGEAR

95%

v < 2.6.5.32

Affected range stops below 2.6.5.32, so it looks safe — our inference, not a vendor statement

netgear-lbr20 (same device)

R6700AX Firmware · NETGEAR

95%

v < 1.0.10.110

Affected range stops below 1.0.10.110, so it looks safe — our inference, not a vendor statement

netgear-r6700ax (same device)

R7800 Firmware · NETGEAR

95%

v < 1.0.2.86

Affected range stops below 1.0.2.86, so it looks safe — our inference, not a vendor statement

R8900 Firmware · NETGEAR

95%

v < 1.0.5.38

Affected range stops below 1.0.5.38, so it looks safe — our inference, not a vendor statement

netgear-r8900 (same device)

R9000 Firmware · NETGEAR

95%

v < 1.0.5.38

Affected range stops below 1.0.5.38, so it looks safe — our inference, not a vendor statement

netgear-r9000 (same device)

RAX10 Firmware · NETGEAR

95%

v < 1.0.10.110

Affected range stops below 1.0.10.110, so it looks safe — our inference, not a vendor statement

netgear-rax10 (same device)

RAX120V1 Firmware · NETGEAR

95%

v < 1.2.3.28

Affected range stops below 1.2.3.28, so it looks safe — our inference, not a vendor statement

netgear-rax120v1 (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/000064407/Security-Advisory-for-Post-Authentication-Command-Injection-Sensitive-Information-Disclosure-on-Multiple-Products-PSV-2021-0169-PSV-2021-0171

References (2)

x_refsource_MISCThird Party Advisory

Source: [email protected]

https://immersivelabs.com/resources/blog/netgear-vulnerabilities-could-put-small-business-routers-at-risk/

x_refsource_MISCPatchVendor Advisory

Source: [email protected]

https://kb.netgear.com/000064407/Security-Advisory-for-Post-Authentication-Command-Injection-Sensitive-Information-Disclosure-on-Multiple-Products-PSV-2021-0169-PSV-2021-0171

CVSS

7.8HIGH[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-78

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