CVE-2021-45604

MEDIUM

4.5

CVSS Score

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

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

74 products affected across 1 vendorR6700 FirmwareR7000P FirmwareRBR850 Firmware

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Severity

MEDIUM4.5

Exploit prediction

EPSS 0.4%

Description

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects CBR750 before 3.2.18.2, D6220 before 1.0.0.68, D6400 before 1.0.0.102, D8500 before 1.0.3.60, LAX20 before 1.1.6.28, MK62 before 1.0.6.116, MR60 before 1.0.6.116, MS60 before 1.0.6.116, R6300v2 before 1.0.4.50, R6400 before 1.0.1.68, R6400v2 before 1.0.4.118, R6700v3 before 1.0.4.118, R6900P before 1.3.3.140, R7000 before 1.0.11.116, R7000P before 1.3.3.140, R7850 before 1.0.5.68, R7900 before 1.0.4.38, R7900P before 1.4.2.84, R7960P before 1.4.2.84, R8000 before 1.0.4.68, R8000P before 1.4.2.84, RAX15 before 1.0.3.96, RAX20 before 1.0.3.96, RAX200 before 1.0.4.120, RAX35v2 before 1.0.3.96, RAX40v2 before 1.0.3.96, RAX43 before 1.0.3.96, RAX45 before 1.0.3.96, RAX50 before 1.0.3.96, RAX75 before 1.0.4.120, RAX80 before 1.0.4.120, RBK752 before 3.2.17.12, RBK852 before 3.2.17.12, RBR750 before 3.2.17.12, RBR850 before 3.2.17.12, RBS750 before 3.2.17.12, RBS850 before 3.2.17.12, RS400 before 1.5.1.80, and XR1000 before 1.0.0.58.

Affected

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

CBR750 Firmware · NETGEAR

95%

v < 3.2.18.2

Affected range stops below 3.2.18.2, so it looks safe — our inference, not a vendor statement

netgear-cbr750 (same device)

D6220 Firmware · NETGEAR

95%

v < 1.0.0.68

Affected range stops below 1.0.0.68, so it looks safe — our inference, not a vendor statement

netgear-d6220 (same device)

D6400 Firmware · NETGEAR

95%

v < 1.0.0.102

Affected range stops below 1.0.0.102, so it looks safe — our inference, not a vendor statement

netgear-d6400 (same device)

D8500 Firmware · NETGEAR

95%

v < 1.0.3.60

Affected range stops below 1.0.3.60, so it looks safe — our inference, not a vendor statement

netgear-d8500 (same device)

LAX20 Firmware · NETGEAR

95%

v < 1.1.6.28

Affected range stops below 1.1.6.28, so it looks safe — our inference, not a vendor statement

netgear-lax20 (same device)

MK62 Firmware · NETGEAR

95%

v < 1.0.6.116

Affected range stops below 1.0.6.116, so it looks safe — our inference, not a vendor statement

netgear-mk62 (same device)

MR60 Firmware · NETGEAR

95%

v < 1.0.6.116

Affected range stops below 1.0.6.116, so it looks safe — our inference, not a vendor statement

netgear-mr60 (same device)

MS60 Firmware · NETGEAR

95%

v < 1.0.6.116

Affected range stops below 1.0.6.116, so it looks safe — our inference, not a vendor statement

netgear-ms60 (same device)

R6300 Firmware · NETGEAR

95%

v < 1.0.4.50

Affected range stops below 1.0.4.50, so it looks safe — our inference, not a vendor statement

netgear-r6300 (same device)

R6400 · NETGEAR

95%

v < 1.0.1.68v < 1.0.4.118

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

Affected range stops below 1.0.4.118, so it looks safe — our inference, not a vendor statement

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/000064526/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-WiFi-Systems-PSV-2020-0572

References (1)

x_refsource_MISCPatchVendor Advisory

Source: [email protected]

https://kb.netgear.com/000064526/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-WiFi-Systems-PSV-2020-0572

CVSS

4.5MEDIUMmitre

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

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-787

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