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CVE-2019-20735

MEDIUM
6.8
CVSS Score
Published: April 16, 2020 at 07:13 PM UTC
Updated: June 17, 2026 at 02:31 AM UTC
28 products affected across 1 vendorR7800 FirmwareR9000 FirmwareR8900 Firmware

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.5%

Description

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D3600 before 1.0.0.75, D6000 before V1.0.0.75, D6100 before V1.0.0.63, R7800 before v1.0.2.52, R8900 before v1.0.4.2, R9000 before v1.0.4.2, RBK50 before v2.3.0.32, RBR50 before v2.3.0.32, RBS50 before v2.3.0.32, WNDR3700v4 before V1.0.2.102, WNDR4300v1 before V1.0.2.104, WNDR4300v2 before v1.0.0.58, WNDR4500v3 before v1.0.0.58, WNR2000v5 before v1.0.0.68, and XR500 before V2.3.2.32.

Affected

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

D3600 Firmware· NETGEAR
95%
v < 1.0.0.75
Affected range stops below 1.0.0.75, so it looks safe — our inference, not a vendor statement
netgear-d3600 (same device)
D6000 Firmware· NETGEAR
95%
v < 1.0.0.75
Affected range stops below 1.0.0.75, so it looks safe — our inference, not a vendor statement
netgear-d6000 (same device)
D6100 Firmware· NETGEAR
95%
v < 1.0.0.63
Affected range stops below 1.0.0.63, so it looks safe — our inference, not a vendor statement
netgear-d6100 (same device)
R7800 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
R8900 Firmware· NETGEAR
95%
v < 1.0.4.2
Affected range stops below 1.0.4.2, so it looks safe — our inference, not a vendor statement
netgear-r8900 (same device)
R9000 Firmware· NETGEAR
95%
v < 1.0.4.2
Affected range stops below 1.0.4.2, so it looks safe — our inference, not a vendor statement
netgear-r9000 (same device)
RBK50 Firmware· NETGEAR
95%
v < 2.3.0.32
Affected range stops below 2.3.0.32, so it looks safe — our inference, not a vendor statement
netgear-rbk50 (same device)
RBR50 Firmware· NETGEAR
95%
v < 2.3.0.32
Affected range stops below 2.3.0.32, so it looks safe — our inference, not a vendor statement
netgear-rbr50 (same device)
RBS50 Firmware· NETGEAR
95%
v < 2.3.0.32
Affected range stops below 2.3.0.32, so it looks safe — our inference, not a vendor statement
netgear-rbs50 (same device)
WNDR3700 Firmware· NETGEAR
95%
v < 1.0.2.102
Affected range stops below 1.0.2.102, 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

References (1)

x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://kb.netgear.com/000061191/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-Gateways-and-WiFi-Systems-PSV-2018-0138

CVSS

6.8MEDIUM[email protected]
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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