CVE-2021-45507 : Certain NETGEAR devices are affected by authentication bypass. This affects CBR4

Certain NETGEAR devices are affected by authentication bypass. This affects CBR40 before 2.5.0.24, CBR750 before 4.6.3.6, RBW30 before 2.6.2.2, RBK752 before 3.2.17.12, RBR750 before 3.2.17.12, RBS750 before 3.2.17.12, RBK852 before 3.2.17.12, RBR850 before 3.2.17.12, RBS850 before 3.2.17.12, and RBS40V before 2.6.2.8.

Published 2021-12-26 01:15:13

Updated 2022-07-12 17:42:04

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2021-45507

Netgear » Rbw30 Firmware
Versions before (<) 2.6.2.2
cpe:2.3:o:netgear:rbw30_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Rbw30 » Version: N/A
Netgear » Rbr850 Firmware
Versions before (<) 3.2.17.12
cpe:2.3:o:netgear:rbr850_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Rbr850 » Version: N/A
Netgear » Rbk852 Firmware
Versions before (<) 3.2.17.12
cpe:2.3:o:netgear:rbk852_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Rbk852 » Version: N/A
Netgear » Rbs850 Firmware
Versions before (<) 3.2.17.12
cpe:2.3:o:netgear:rbs850_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Rbs850 » Version: N/A
Netgear » Rbs40v Firmware
Versions before (<) 2.6.2.8
cpe:2.3:o:netgear:rbs40v_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Rbs40v » Version: N/A
Netgear » Rbk752 Firmware
Versions before (<) 3.2.17.12
cpe:2.3:o:netgear:rbk752_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Rbk752 » Version: N/A
Netgear » Rbr750 Firmware
Versions before (<) 3.2.17.12
cpe:2.3:o:netgear:rbr750_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Rbr750 » Version: N/A
Netgear » Rbs750 Firmware
Versions before (<) 3.2.17.12
cpe:2.3:o:netgear:rbs750_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Rbs750 » Version: N/A
Netgear » Cbr40 Firmware
Versions before (<) 2.5.0.24
cpe:2.3:o:netgear:cbr40_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Cbr40 » Version: N/A
Netgear » Cbr750 Firmware
Versions before (<) 4.6.3.6
cpe:2.3:o:netgear:cbr750_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Cbr750 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2021-45507

EPSS FAQ

0.28%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 68 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-45507

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.6	CRITICAL	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H	2.8	6.0	MITRE
Attack Vector: Adjacent Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Changed Confidentiality: High Integrity: High Availability: High
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

References for CVE-2021-45507

https://kb.netgear.com/000064131/Security-Advisory-for-Authentication-Bypass-on-Some-WiFi-Systems-PSV-2020-0487

Security Advisory for Authentication Bypass on Some WiFi Systems, PSV-2020-0487 | Answer | NETGEAR Support
Patch;Vendor Advisory

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Vulnerability Details : CVE-2021-45507

Products affected by CVE-2021-45507

Exploit prediction scoring system (EPSS) score for CVE-2021-45507

CVSS scores for CVE-2021-45507

References for CVE-2021-45507