CVE-2018-21181

HIGH

7.2

CVSS Score

Published: April 28, 2020 at 12:47 PM UTC

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

26 products affected across 1 vendorR7800 FirmwareR9000 FirmwareD7800 Firmware

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Severity

HIGH7.2

Exploit prediction

EPSS 1%

Description

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D7800 before 1.0.1.28, EX2700 before 1.0.1.32, EX6200v2 before 1.0.1.56, R7500v2 before 1.0.3.24, R7800 before 1.0.2.40, R9000 before 1.0.3.6, WN2000RPTv3 before 1.0.1.20, WN3000RPv3 before 1.0.2.52, WN3100RPv2 before 1.0.0.42, WNDR3700v4 before 1.0.2.92, WNDR4300 before 1.0.2.94, WNDR4300v2 before 1.0.0.50, WNDR4500v3 before 1.0.0.50, and WNR2000v5 before 1.0.0.62.

Affected

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

D7800 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-d7800 (same device)

EX2700 Firmware · NETGEAR

95%

v < 1.0.1.32

Affected range stops below 1.0.1.32, so it looks safe — our inference, not a vendor statement

netgear-ex2700 (same device)

EX6200 Firmware · NETGEAR

95%

v < 1.0.1.56

Affected range stops below 1.0.1.56, so it looks safe — our inference, not a vendor statement

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)

R7800 Firmware · NETGEAR

95%

v < 1.0.2.40

Affected range stops below 1.0.2.40, so it looks safe — our inference, not a vendor statement

R9000 Firmware · NETGEAR

95%

v < 1.0.3.6

Affected range stops below 1.0.3.6, 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 < 1.0.2.52

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

netgear-wn3000rp (same device)

WN3100RP Firmware · NETGEAR

95%

v < 1.0.0.42

Affected range stops below 1.0.0.42, so it looks safe — our inference, not a vendor statement

netgear-wn3100rp (same device)

WNDR3700 Firmware · NETGEAR

95%

v < 1.0.2.92

Affected range stops below 1.0.2.92, so it looks safe — our inference, not a vendor statement

netgear-wndr3700 (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/000055177/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-Gateways-and-Extenders-PSV-2017-2618

References (1)

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

https://kb.netgear.com/000055177/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-Gateways-and-Extenders-PSV-2017-2618

CVSS

7.2HIGH[email protected]

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

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-787

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