CVE-2018-21214

HIGH

8.8

CVSS Score

Published: April 28, 2020 at 03:40 PM UTC

Updated: June 17, 2026 at 01:54 AM UTC

18 products affected across 1 vendorR9000 FirmwareR7500 FirmwareR6100 Firmware

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Severity

HIGH8.8

Exploit prediction

EPSS 0.7%

Description

Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D3600 before 1.0.0.67, D6000 before 1.0.0.67, EX2700 before 1.0.1.28, R6100 before 1.0.1.20, R7500v2 before 1.0.3.24, R9000 before 1.0.2.52, WN2000RPTv3 before 1.0.1.20, WN3000RPv3 before 1.0.2.50, and WN3100RPv2 before 1.0.0.56.

Affected

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

D3600 Firmware · NETGEAR

95%

v < 1.0.0.67

Affected range stops below 1.0.0.67, so it looks safe — our inference, not a vendor statement

netgear-d3600 (same device)

D6000 Firmware · NETGEAR

95%

v < 1.0.0.67

Affected range stops below 1.0.0.67, so it looks safe — our inference, not a vendor statement

netgear-d6000 (same device)

EX2700 Firmware · NETGEAR

95%

v < 1.0.1.28

Affected range stops below 1.0.1.28, so it looks safe — our inference, not a vendor statement

netgear-ex2700 (same device)

R6100 Firmware · NETGEAR

95%

v < 1.0.1.20

Affected range stops below 1.0.1.20, so it looks safe — our inference, not a vendor statement

netgear-r6100 (same device)

R7500 Firmware · NETGEAR

95%

v < 1.0.3.24

Affected range stops below 1.0.3.24, so it looks safe — our inference, not a vendor statement

netgear-r7500 (same device)

R9000 Firmware · NETGEAR

95%

v < 1.0.2.52

Affected range stops below 1.0.2.52, so it looks safe — our inference, not a vendor statement

netgear-r9000 (same device)

WN2000RPT Firmware · NETGEAR

95%

v < 1.0.1.20

Affected range stops below 1.0.1.20, so it looks safe — our inference, not a vendor statement

netgear-wn2000rpt (same device)

WN3000RP Firmware · NETGEAR

95%

v < 1.0.2.50

Affected range stops below 1.0.2.50, so it looks safe — our inference, not a vendor statement

netgear-wn3000rp (same device)

WN3100RP Firmware · NETGEAR

95%

v < 1.0.0.56

Affected range stops below 1.0.0.56, so it looks safe — our inference, not a vendor statement

netgear-wn3100rp (same device)

D3600 · NETGEARdevice

80%

All versions

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/000055123/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Routers-Gateways-and-Extenders-PSV-2017-2488

References (1)

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

https://kb.netgear.com/000055123/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Routers-Gateways-and-Extenders-PSV-2017-2488

CVSS

8.8HIGH[email protected]

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

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-120

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