CVE-2021-45638

CVSS V2 High 7.5 CVSS V3 Critical 9.8

Description

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects D6220 before 1.0.0.68, D6400 before 1.0.0.102, D7000v2 before 1.0.0.74, D8500 before 1.0.3.60, DC112A before 1.0.0.56, R6300v2 before 1.0.4.50, R6400 before 1.0.1.68, R7000 before 1.0.11.116, R7100LG before 1.0.0.70, RBS40V before 2.6.2.8, RBW30 before 2.6.2.2, RS400 before 1.5.1.80, R7000P before 1.3.2.132, and R6900P before 1.3.2.132.

Overview

CVE ID
CVE-2021-45638

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2021-12-26T01:15:19

Last Modified Date
2022-01-10T20:17:20

Weakness Enumerations

CWE	URL
CWE-787	http://cwe.mitre.org/data/definitions/787.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version End
		AND
cpe:2.3:o:netgear:d6220_firmware::::::::	1	OR	1.0.0.68
cpe:2.3:h:netgear:d6220:-:::::::*	0	OR
		AND
cpe:2.3:o:netgear:d6400_firmware::::::::	1	OR	1.0.0.102
cpe:2.3:h:netgear:d6400:-:::::::*	0	OR
		AND
cpe:2.3:o:netgear:d7000v2_firmware::::::::	1	OR	1.0.0.74
cpe:2.3:h:netgear:d7000v2:-:::::::*	0	OR
		AND
cpe:2.3:o:netgear:d8500_firmware::::::::	1	OR	1.0.3.60
cpe:2.3:h:netgear:d8500:-:::::::*	0	OR
		AND
cpe:2.3:o:netgear:dc112a_firmware::::::::	1	OR	1.0.0.56
cpe:2.3:h:netgear:dc112a:-:::::::*	0	OR
		AND
cpe:2.3:o:netgear:r6300v2_firmware::::::::	1	OR	1.0.4.50
cpe:2.3:h:netgear:r6300v2:-:::::::*	0	OR
		AND
cpe:2.3:o:netgear:r6400_firmware::::::::	1	OR	1.0.1.68
cpe:2.3:h:netgear:r6400:-:::::::*	0	OR
		AND
cpe:2.3:o:netgear:r7000_firmware::::::::	1	OR	1.0.11.116
cpe:2.3:h:netgear:r7000:-:::::::*	0	OR
		AND
cpe:2.3:o:netgear:r7100lg_firmware::::::::	1	OR	1.0.0.70
cpe:2.3:h:netgear:r7100lg:-:::::::*	0	OR
		AND
cpe:2.3:o:netgear:r7000p_firmware::::::::	1	OR	1.3.2.132
cpe:2.3:h:netgear:r7000p:-:::::::*	0	OR
		AND
cpe:2.3:o:netgear:rbs40v_firmware::::::::	1	OR	2.6.2.8
cpe:2.3:h:netgear:rbs40v:-:::::::*	0	OR
		AND
cpe:2.3:o:netgear:rbw30_firmware::::::::	1	OR	2.6.2.2
cpe:2.3:h:netgear:rbw30:-:::::::*	0	OR
		AND
cpe:2.3:o:netgear:rs400_firmware::::::::	1	OR	1.5.1.80
cpe:2.3:h:netgear:rs400:-:::::::*	0	OR
		AND
cpe:2.3:o:netgear:r6900p_firmware::::::::	1	OR	1.3.2.132
cpe:2.3:h:netgear:r6900p:-:::::::*	0	OR

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
7.5

Severity
HIGH

Exploitability Score
10

Impact Score
6.4

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
9.8

Base Severity
CRITICAL

Exploitability Score
3.9

Impact Score
5.9

References

Reference URL	Reference Tags
https://kb.netgear.com/000064496/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-PSV-2020-0464	Patch Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-45638
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45638

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:37:54				Added to TrackCVE
2022-12-06 05:04:14	2021-12-26T01:15Z	2021-12-26T01:15:19	CVE Published Date	updated
2022-12-06 05:04:14		2022-01-10T20:17:20	CVE Modified Date	updated
2022-12-06 05:04:14		Analyzed	Vulnerability Status	updated