What is the CVSS score of CVE-2026-20096?

CVE-2026-20096 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.1%.

Cisco Enterprise Nfv Infrastructure Software CVE-2026-20096

EUVD-2026-17952 MEDIUM

Command Injection (CWE-77)

2026-04-01 cisco

GHSA-3w5r-3hp5-3v3p

Command Injection Cisco Cisco Enterprise Nfv Infrastructure Software Cisco Unified Computing System Standalone Cisco Unified Computing System E Series Software Ucse

6.5

CVSS 3.1 · Vendor: cisco

Severity by source

Vendor (cisco) PRIMARY

6.5 MEDIUM

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

Primary rating from Vendor (cisco) · only source for this CVE.

CVSS VectorVendor: cisco

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

EUVD ID Assigned

Apr 01, 2026 - 17:30 euvd

EUVD-2026-17952

Analysis Generated

Apr 01, 2026 - 17:30 vuln.today

CVE Published

Apr 01, 2026 - 16:29 nvd

MEDIUM 6.5

DescriptionCVE.org

A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with admin-level privileges to perform command injection attacks on an affected system and execute arbitrary commands as the root user.

This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending crafted commands to the web-based management interface of the affected software. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system as the root user. Cisco has assigned this vulnerability a Security Impact Rating (SIR) of High, rather than Medium as the score indicates, because additional security implications could occur once the attacker has become root.

AnalysisAI

Command injection in Cisco IMC web management interface allows authenticated admin-level attackers to execute arbitrary commands as root through improper input validation. Affects Cisco Enterprise NFV Infrastructure Software, Unified Computing System (standalone), and UCS E-Series platforms. No public exploit code or active exploitation confirmed at time of analysis, but the high-privileged context and root-level impact necessitate swift patching.

Technical ContextAI

Cisco Integrated Management Controller (IMC) is a baseboard management controller providing out-of-band management for Cisco UCS and related infrastructure platforms via a web-based interface. The vulnerability stems from CWE-77 (Improper Neutralization of Special Elements used in a Command), a command injection flaw where user-supplied input to the management interface is not properly validated before being passed to system command execution contexts. This allows authenticated administrators to inject shell metacharacters or command sequences that the underlying operating system interprets as additional commands, bypassing intended restrictions. The affected products include Cisco Enterprise NFV Infrastructure Software and Cisco UCS deployments (both standalone and E-Series variants), all of which rely on IMC for management operations.

RemediationAI

Apply the patch released by Cisco for IMC. Consult the official Cisco Security Advisory at https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-cmd-inj-3hKN3bVt for specific fixed IMC firmware versions for each affected platform (Enterprise NFV Infrastructure, UCS standalone, and UCS E-Series). Until patches can be deployed, enforce strict network access controls to limit web-based management interface access to trusted administrative networks only, and audit IMC admin accounts for unauthorized activity or anomalous command patterns. Prioritize patching UCS and NFV infrastructure systems that manage critical business services or contain sensitive data.