What is the CVSS score of CVE-2021-45540?

CVE-2021-45540 has a CVSS 3.1 base score of 8.4 (High). CVSS vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.6%.

Is there a patch available for CVE-2021-45540?

Yes, a patch is available for CVE-2021-45540. Update the affected software to the latest version immediately.

R7900P Firmware CVE-2021-45540

HIGH

Command Injection (CWE-77)

2021-12-26 cve@mitre.org

Netgear Command Injection R7900P Firmware R7960P Firmware R8000 Firmware R8000P Firmware Mr60 Firmware Rax45 Firmware Rax80 Firmware Rax50 Firmware Rax75 Firmware Ms60 Firmware R7000 Firmware R7900 Firmware Rax200 Firmware

8.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.4 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Dec 26, 2021 - 01:15 nvd

HIGH 8.4

DescriptionNVD

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects R7000 before 1.0.11.126, 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, RAX200 before 1.0.3.106, MR60 before 1.0.6.110, RAX45 before 1.0.2.66, RAX80 before 1.0.3.106, MS60 before 1.0.6.110, RAX50 before 1.0.2.66, and RAX75 before 1.0.3.106.

AnalysisAI

Certain NETGEAR devices are affected by command injection by an authenticated user. Rated high severity (CVSS 8.4), this vulnerability is low attack complexity.

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 authenticated user. This affects R7000 before 1.0.11.126, 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, RAX200 before 1.0.3.106, MR60 before 1.0.6.110, RAX45 before 1.0.2.66, RAX80 before 1.0.3.106, MS60 before 1.0.6.110, RAX50 before 1.0.2.66, and RAX75 before 1.0.3.106. Affected products include: Netgear R7900P Firmware, Netgear R7960P Firmware, Netgear R8000 Firmware, Netgear R8000P Firmware, Netgear Mr60 Firmware. Version information: before 1.0.11.126.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Use parameterized APIs, avoid shell execution, validate input with strict allowlists.