CVE-2018-21182

MEDIUM
6.8
CVSS Score
Published: April 28, 2020 at 12:48 PM UTC
Updated: June 17, 2026 at 01:54 AM UTC
8 products affected across 1 vendorR7800 FirmwareR9000 FirmwareWNDR4300 Firmware

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.6%

Description

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects R7800 before 1.0.2.40, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.92, and WNDR4300 before 1.0.2.94.

Affected

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

v < 1.0.2.40
Affected range stops below 1.0.2.40, so it looks safe — our inference, not a vendor statement
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)
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)
v < 1.0.2.94
Affected range stops below 1.0.2.94, so it looks safe — our inference, not a vendor statement
netgear-wndr4300 (same device)
All versions
All versions
All versions
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
ADJACENT_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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