What is the CVSS score of CVE-2021-3723?

CVE-2021-3723 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.9%.

System X3550 M3 Firmware CVE-2021-3723

HIGH

OS Command Injection (CWE-78)

2021-11-12 psirt@lenovo.com

IBM Command Injection System X3550 M3 Firmware System X3650 M3 Firmware

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Nov 12, 2021 - 22:15 nvd

HIGH 8.8

DescriptionNVD

A command injection vulnerability was reported in the Integrated Management Module (IMM) of legacy IBM System x 3550 M3 and IBM System x 3650 M3 servers that could allow the execution of operating system commands over an authenticated SSH or Telnet session.

AnalysisAI

A command injection vulnerability was reported in the Integrated Management Module (IMM) of legacy IBM System x 3550 M3 and IBM System x 3650 M3 servers that could allow the execution of operating. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. A command injection vulnerability was reported in the Integrated Management Module (IMM) of legacy IBM System x 3550 M3 and IBM System x 3650 M3 servers that could allow the execution of operating system commands over an authenticated SSH or Telnet session. Affected products include: Ibm System X3550 M3 Firmware, Ibm System X3650 M3 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.