What is the CVSS score of CVE-2021-45620?

CVE-2021-45620 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 2.0%.

Cbr40 Firmware CVE-2021-45620

CRITICAL

Command Injection (CWE-77)

2021-12-26 cve@mitre.org

Netgear Command Injection Cbr40 Firmware Cbr750 Firmware Eax20 Firmware Eax80 Firmware Lax20 Firmware Mr60 Firmware Ms60 Firmware R6400V2 Firmware R6700V3 Firmware R6900P Firmware R7000 Firmware R7000P Firmware R7850 Firmware R7900 Firmware R7900P Firmware R7960P Firmware R8000 Firmware R8000P Firmware Rax15 Firmware Rax20 Firmware Rax200 Firmware Rax35V2 Firmware Rax40V2 Firmware Rax43 Firmware Rax45 Firmware Rax50 Firmware Rax75 Firmware Rax80 Firmware Rbk752 Firmware Rbk852 Firmware Rbr750 Firmware Rbr850 Firmware Rbs750 Firmware Rbs850 Firmware Rs400 Firmware Xr1000 Firmware Xr300 Firmware R6400 Firmware Mk62 Firmware Mr80 Firmware Ms80 Firmware Mk83 Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Dec 26, 2021 - 01:15 nvd

CRITICAL 9.8

DescriptionNVD

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before 2.5.0.24, CBR750 before 4.6.3.6, EAX20 before 1.0.0.58, EAX80 before 1.0.1.68, LAX20 before 1.1.6.28, MR60 before 1.0.6.116, MR80 before 1.1.2.20, MS60 before 1.0.6.116, MS80 before 1.1.2.20, MK62 before 1.0.6.116, MK83 before 1.1.2.20, R6400 before 1.0.1.70, R6400v2 before 1.0.4.106, R6700v3 before 1.0.4.106, R6900P before 1.3.3.140, R7000 before 1.0.11.126, R7000P before 1.3.3.140, R7850 before 1.0.5.74, R7900 before 1.0.4.46, R7900P before 1.4.2.84, R7960P before 1.4.2.84, R8000 before 1.0.4.74, R8000P before 1.4.2.84, RAX15 before 1.0.3.96, RAX20 before 1.0.3.96, RAX200 before 1.0.4.120, RAX35v2 before 1.0.3.96, RAX40v2 before 1.0.3.96, RAX43 before 1.0.3.96, RAX45 before 1.0.3.96, RAX50 before 1.0.3.96, RAX75 before 1.0.4.120, RAX80 before 1.0.4.120, RBK752 before 3.2.17.12, RBK852 before 3.2.17.12, RBR750 before 3.2.17.12, RBR850 before 3.2.17.12, RBS750 before 3.2.17.12, RBS850 before 3.2.17.12, RS400 before 1.5.1.80, XR1000 before 1.0.0.58, and XR300 before 1.0.3.68.

AnalysisAI

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Command Injection (CWE-77), which allows attackers to inject arbitrary commands into system command execution. Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before 2.5.0.24, CBR750 before 4.6.3.6, EAX20 before 1.0.0.58, EAX80 before 1.0.1.68, LAX20 before 1.1.6.28, MR60 before 1.0.6.116, MR80 before 1.1.2.20, MS60 before 1.0.6.116, MS80 before 1.1.2.20, MK62 before 1.0.6.116, MK83 before 1.1.2.20, R6400 before 1.0.1.70, R6400v2 before 1.0.4.106, R6700v3 before 1.0.4.106, R6900P before 1.3.3.140, R7000 before 1.0.11.126, R7000P before 1.3.3.140, R7850 before 1.0.5.74, R7900 before 1.0.4.46, R7900P before 1.4.2.84, R7960P before 1.4.2.84, R8000 before 1.0.4.74, R8000P before 1.4.2.84, RAX15 before 1.0.3.96, RAX20 before 1.0.3.96, RAX200 before 1.0.4.120, RAX35v2 before 1.0.3.96, RAX40v2 before 1.0.3.96, RAX43 before 1.0.3.96, RAX45 before 1.0.3.96, RAX50 before 1.0.3.96, RAX75 before 1.0.4.120, RAX80 before 1.0.4.120, RBK752 before 3.2.17.12, RBK852 before 3.2.17.12, RBR750 before 3.2.17.12, RBR850 before 3.2.17.12, RBS750 before 3.2.17.12, RBS850 before 3.2.17.12, RS400 before 1.5.1.80, XR1000 before 1.0.0.58, and XR300 before 1.0.3.68. Affected products include: Netgear Cbr40 Firmware, Netgear Cbr750 Firmware, Netgear Eax20 Firmware, Netgear Eax80 Firmware, Netgear Lax20 Firmware. Version information: before 2.5.0.24.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use parameterized APIs, avoid shell execution, validate input with strict allowlists.