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MitreCVE-2018-21172

HistoryApr 27, 2020 - 6:15 p.m.

CVE-2018-21172

2020-04-2718:15:12

CWE-787

mitre

web.nvd.nist.gov

cve

2018

21172

netgear

stack-based buffer overflow

r7800

r9000

wndr3700v4

wndr4300

wndr4300v2

wndr4500v3

wnr2000v5

nvd

vulnerability

security

CVSS2

5.2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:A/AC:L/Au:S/C:P/I:P/A:P

CVSS3

6.8

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

AI Score

6.7

Confidence

High

EPSS

Percentile

12.6%

JSON

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, 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 configurations

Nvd

Node

netgearr7800_firmwareRange<1.0.2.40

AND

netgearr7800Match-

Node

netgearr9000_firmwareRange<1.0.2.52

AND

netgearr9000Match-

Node

netgearwndr3700_firmwareRange<1.0.2.92

AND

netgearwndr3700Matchv4

Node

netgearwndr4300_firmwareRange<1.0.2.94

AND

netgearwndr4300Match-

Node

netgearwndr4300_firmwareRange<1.0.0.50

AND

netgearwndr4300Matchv2

Node

netgearwndr4500_firmwareRange<1.0.0.50

AND

netgearwndr4500Matchv3

Node

netgearwnr2000_firmwareRange<1.0.0.62

AND

netgearwnr2000Matchv5

VendorProductVersionCPE
netgearr7800_firmware*cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:*
netgearr7800-cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:*
netgearr9000_firmware*cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:*
netgearr9000-cpe:2.3:h:netgear:r9000:-:*:*:*:*:*:*:*
netgearwndr3700_firmware*cpe:2.3:o:netgear:wndr3700_firmware:*:*:*:*:*:*:*:*
netgearwndr3700v4cpe:2.3:h:netgear:wndr3700:v4:*:*:*:*:*:*:*
netgearwndr4300_firmware*cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:*
netgearwndr4300-cpe:2.3:h:netgear:wndr4300:-:*:*:*:*:*:*:*
netgearwndr4300v2cpe:2.3:h:netgear:wndr4300:v2:*:*:*:*:*:*:*
netgearwndr4500_firmware*cpe:2.3:o:netgear:wndr4500_firmware:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
netgear	r7800_firmware	*	cpe:2.3:o:netgear:r7800_firmware::::::::
netgear	r7800	-	cpe:2.3:h:netgear:r7800:-:::::::*
netgear	r9000_firmware	*	cpe:2.3:o:netgear:r9000_firmware::::::::
netgear	r9000	-	cpe:2.3:h:netgear:r9000:-:::::::*
netgear	wndr3700_firmware	*	cpe:2.3:o:netgear:wndr3700_firmware::::::::
netgear	wndr3700	v4	cpe:2.3:h:netgear:wndr3700:v4:::::::*
netgear	wndr4300_firmware	*	cpe:2.3:o:netgear:wndr4300_firmware::::::::
netgear	wndr4300	-	cpe:2.3:h:netgear:wndr4300:-:::::::*
netgear	wndr4300	v2	cpe:2.3:h:netgear:wndr4300:v2:::::::*
netgear	wndr4500_firmware	*	cpe:2.3:o:netgear:wndr4500_firmware::::::::

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References

kb.netgear.com/000055186/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-PSV-2017-2631

CVSS2

5.2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:A/AC:L/Au:S/C:P/I:P/A:P

CVSS3

6.8

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

AI Score

6.7

Confidence

High

EPSS

Percentile

12.6%

JSON

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