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CVE-2021-45534

HIGH
7.8
CVSS Score
Published: December 26, 2021 at 12:55 AM UTC
Updated: June 17, 2026 at 04:13 AM UTC
34 products affected across 1 vendorR6800 FirmwareD7000 FirmwareR6220 Firmware

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Severity
HIGH7.8
Exploit prediction
EPSS 1%

Description

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects AC2100 before 1.2.0.88, AC2400 before 1.2.0.88, AC2600 before 1.2.0.88, D7000 before 1.0.1.82, R6220 before 1.1.0.110, R6230 before 1.1.0.110, R6260 before 1.1.0.84, R6330 before 1.1.0.84, R6350 before 1.1.0.84, R6700v2 before 1.2.0.88, R6800 before 1.2.0.88, R6850 before 1.1.0.84, R6900v2 before 1.2.0.88, R7200 before 1.2.0.88, R7350 before 1.2.0.88, R7400 before 1.2.0.88, and R7450 before 1.2.0.88.

Affected

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

AC2100 Firmware· NETGEAR
95%
v < 1.2.0.88
Affected range stops below 1.2.0.88, so it looks safe — our inference, not a vendor statement
netgear-ac2100 (same device)
AC2400 Firmware· NETGEAR
95%
v < 1.2.0.88
Affected range stops below 1.2.0.88, so it looks safe — our inference, not a vendor statement
netgear-ac2400 (same device)
AC2600 Firmware· NETGEAR
95%
v < 1.2.0.88
Affected range stops below 1.2.0.88, so it looks safe — our inference, not a vendor statement
netgear-ac2600 (same device)
D7000 Firmware· NETGEAR
95%
v < 1.0.1.82
Affected range stops below 1.0.1.82, so it looks safe — our inference, not a vendor statement
netgear-d7000 (same device)
R6220 Firmware· NETGEAR
95%
v < 1.1.0.110
Affected range stops below 1.1.0.110, so it looks safe — our inference, not a vendor statement
netgear-r6220 (same device)
R6230 Firmware· NETGEAR
95%
v < 1.1.0.110
Affected range stops below 1.1.0.110, so it looks safe — our inference, not a vendor statement
netgear-r6230 (same device)
R6260 Firmware· NETGEAR
95%
v < 1.1.0.84
Affected range stops below 1.1.0.84, so it looks safe — our inference, not a vendor statement
netgear-r6260 (same device)
R6330 Firmware· NETGEAR
95%
v < 1.1.0.84
Affected range stops below 1.1.0.84, so it looks safe — our inference, not a vendor statement
netgear-r6330 (same device)
R6350 Firmware· NETGEAR
95%
v < 1.1.0.84
Affected range stops below 1.1.0.84, so it looks safe — our inference, not a vendor statement
netgear-r6350 (same device)
R6700V2 Firmware· NETGEAR
95%
v < 1.2.0.88
Affected range stops below 1.2.0.88, so it looks safe — our inference, not a vendor statement
netgear-r6700v2 (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

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/000064406/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-and-DSL-Modem-Routers-PSV-2021-0172

CVSS

7.8HIGHmitre
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-77

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