CVE-2021-45656

HIGH

7.8

CVSS Score

Published: December 26, 2021 at 12:28 AM UTC

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

54 products affected across 1 vendorR6700 FirmwareRBR50 FirmwareRBS50 Firmware

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Severity

HIGH7.8

Exploit prediction

EPSS 0.3%

Description

Certain NETGEAR devices are affected by server-side injection. This affects D6200 before 1.1.00.38, D7000 before 1.0.1.78, R6020 before 1.0.0.48, R6080 before 1.0.0.48, R6050 before 1.0.1.26, JR6150 before 1.0.1.26, R6120 before 1.0.0.66, R6220 before 1.1.0.100, R6230 before 1.1.0.100, R6260 before 1.1.0.78, R6800 before 1.2.0.76, R6900v2 before 1.2.0.76, R6700v2 before 1.2.0.76, R7450 before 1.2.0.76, AC2100 before 1.2.0.76, AC2400 before 1.2.0.76, AC2600 before 1.2.0.76, RBK40 before 2.5.1.16, RBR40 before 2.5.1.16, RBS40 before 2.5.1.16, RBK20 before 2.5.1.16, RBR20 before 2.5.1.16, RBS20 before 2.5.1.16, RBK50 before 2.5.1.16, RBR50 before 2.5.1.16, RBS50 before 2.5.1.16, and RBS50Y before 2.6.1.40.

Affected

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

AC2100 Firmware · NETGEAR

95%

v < 1.2.0.76

Affected range stops below 1.2.0.76, so it looks safe — our inference, not a vendor statement

netgear-ac2100 (same device)

AC2400 Firmware · NETGEAR

95%

v < 1.2.0.76

Affected range stops below 1.2.0.76, so it looks safe — our inference, not a vendor statement

netgear-ac2400 (same device)

AC2600 Firmware · NETGEAR

95%

v < 1.2.0.76

Affected range stops below 1.2.0.76, so it looks safe — our inference, not a vendor statement

netgear-ac2600 (same device)

D6200 Firmware · NETGEAR

95%

v < 1.1.00.38

Affected range stops below 1.1.00.38, so it looks safe — our inference, not a vendor statement

netgear-d6200 (same device)

D7000 Firmware · NETGEAR

95%

v < 1.0.1.78

Affected range stops below 1.0.1.78, so it looks safe — our inference, not a vendor statement

netgear-d7000 (same device)

JR6150 Firmware · NETGEAR

95%

v < 1.0.1.26

Affected range stops below 1.0.1.26, so it looks safe — our inference, not a vendor statement

netgear-jr6150 (same device)

R6020 Firmware · NETGEAR

95%

v < 1.0.0.48

Affected range stops below 1.0.0.48, so it looks safe — our inference, not a vendor statement

netgear-r6020 (same device)

R6050 Firmware · NETGEAR

95%

v < 1.0.1.26

Affected range stops below 1.0.1.26, so it looks safe — our inference, not a vendor statement

netgear-r6050 (same device)

R6080 Firmware · NETGEAR

95%

v < 1.0.0.48

Affected range stops below 1.0.0.48, so it looks safe — our inference, not a vendor statement

netgear-r6080 (same device)

R6120 Firmware · NETGEAR

95%

v < 1.0.0.66

Affected range stops below 1.0.0.66, so it looks safe — our inference, not a vendor statement

netgear-r6120 (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/000064066/Security-Advisory-for-Server-Side-Injection-on-Some-Routers-and-WiFi-Systems-PSV-2019-0140

References (1)

x_refsource_MISCPatchVendor Advisory

Source: [email protected]

https://kb.netgear.com/000064066/Security-Advisory-for-Server-Side-Injection-on-Some-Routers-and-WiFi-Systems-PSV-2019-0140

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-74

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