CVE-2018-21139

HIGH

7.5

CVSS Score

Published: April 23, 2020 at 08:12 PM UTC

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

96 products affected across 1 vendorR6700 FirmwareD7800 FirmwareR7000P Firmware

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Severity

HIGH7.5

Exploit prediction

EPSS 1%

Description

Certain NETGEAR devices are affected by disclosure of sensitive information. This affects D1500 before 1.0.0.27, D500 before 1.0.0.27, D6100 before 1.0.0.58, D6200 before 1.1.00.30, D6220 before 1.0.0.46, D6400 before 1.0.0.82, D7000 before 1.0.1.68, D7000v2 before 1.0.0.51, D7800 before 1.0.1.42, D8500 before 1.0.3.42, DC112A before 1.0.0.40, DGN2200Bv4 before 1.0.0.102, DGN2200v4 before 1.0.0.102, JNR1010v2 before 1.1.0.54, JR6150 before 1.0.1.18, JWNR2010v5 before 1.1.0.54, PR2000 before 1.0.0.24, R6020 before 1.0.0.34, R6050 before 1.0.1.18, R6080 before 1.0.0.34, R6100 before 1.0.1.22, R6120 before 1.0.0.42, R6220 before 1.1.0.68, R6250 before 1.0.4.30, R6300v2 before 1.0.4.32, R6400 before 1.0.1.44, R6400v2 before 1.0.2.60, R6700 before 1.0.1.48, R6700v2 before 1.2.0.24, R6800 before 1.2.0.24, R6900 before 1.0.1.48, R6900P before 1.3.1.44, R6900v2 before 1.2.0.24, R7000 before 1.0.9.34, R7000P before 1.3.1.44, R7100LG before 1.0.0.48, R7300 before 1.0.0.68, R7500 before 1.0.0.124, R7500v2 before 1.0.3.38, R7900 before 1.0.2.16, R7900P before 1.4.1.24, R8000 before 1.0.4.18, R8000P before 1.4.1.24, R8300 before 1.0.2.122, R8500 before 1.0.2.122, WN3000RP before 1.0.0.68, WN3000RPv2 before 1.0.0.68, WNDR3400v3 before 1.0.1.18, WNDR3700v4 before 1.0.2.102, WNDR3700v5 before 1.1.0.54, WNDR4300v1 before 1.0.2.104, WNDR4300v2 before 1.0.0.56, WNDR4500v3 before 1.0.0.56, WNR1000v4 before 1.1.0.54, WNR2020 before 1.1.0.54, WNR2050 before 1.1.0.54, and WNR3500Lv2 before 1.2.0.54.

Affected

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

D1500 Firmware · NETGEAR

95%

v < 1.0.0.27

Affected range stops below 1.0.0.27, so it looks safe — our inference, not a vendor statement

netgear-d1500 (same device)

D500 Firmware · NETGEAR

95%

v < 1.0.0.27

Affected range stops below 1.0.0.27, so it looks safe — our inference, not a vendor statement

netgear-d500 (same device)

D6100 Firmware · NETGEAR

95%

v < 1.0.0.58

Affected range stops below 1.0.0.58, so it looks safe — our inference, not a vendor statement

netgear-d6100 (same device)

D6200 Firmware · NETGEAR

95%

v < 1.1.00.30

Affected range stops below 1.1.00.30, so it looks safe — our inference, not a vendor statement

netgear-d6200 (same device)

D6220 Firmware · NETGEAR

95%

v < 1.0.0.46

Affected range stops below 1.0.0.46, so it looks safe — our inference, not a vendor statement

netgear-d6220 (same device)

D6400 Firmware · NETGEAR

95%

v < 1.0.0.82

Affected range stops below 1.0.0.82, so it looks safe — our inference, not a vendor statement

netgear-d6400 (same device)

D7000 Firmware · NETGEAR

95%

v < 1.0.0.51v < 1.0.1.68

Affected range stops below 1.0.0.51, so it looks safe — our inference, not a vendor statement

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

netgear-d7000 (same device)

D7800 Firmware · NETGEAR

95%

v < 1.0.1.42

Affected range stops below 1.0.1.42, so it looks safe — our inference, not a vendor statement

netgear-d7800 (same device)

D8500 Firmware · NETGEAR

95%

v < 1.0.3.42

Affected range stops below 1.0.3.42, so it looks safe — our inference, not a vendor statement

netgear-d8500 (same device)

DC112A Firmware · NETGEAR

95%

v < 1.0.0.40

Affected range stops below 1.0.0.40, 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/000060220/Security-Advisory-for-Sensitive-Information-Disclosure-on-Some-Routers-and-Smart-Cradles-PSV-2017-2198

References (1)

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

https://kb.netgear.com/000060220/Security-Advisory-for-Sensitive-Information-Disclosure-on-Some-Routers-and-Smart-Cradles-PSV-2017-2198

CVSS

7.5HIGH[email protected]

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

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-200

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