What is the CVSS score of CVE-2026-20094?

CVE-2026-20094 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: 0.3%.

Which versions of Cisco Unified Computing System Standalone are affected by CVE-2026-20094?

CVE-2026-20094 is a high-severity command injection vulnerability in Cisco Integrated Management Controller (IMC) that allows authenticated users with read-only access to execute arbitrary commands…

How to fix or mitigate CVE-2026-20094?

Within 24 hours: Inventory all Cisco IMC instances in production and identify current firmware versions; restrict network access to IMC web interfaces to administrative jump hosts only. Within 7 days: Disable or isolate IMC instances not in active use; implement network segmentation to limit lateral movement from compromised IMC systems. Within 30 days: Monitor Cisco security advisories for patch availability and test in non-production environment immediately upon release; plan emergency patching schedule with change management.

Cisco Unified Computing System Standalone CVE-2026-20094

EUVD-2026-17948 HIGH

Command Injection (CWE-77)

2026-04-01 cisco

Cisco Command Injection Cisco Unified Computing System Standalone Cisco Unified Computing System E Series Software Ucse

8.8

CVSS 3.1 · Vendor: cisco

Severity by source

Vendor (cisco) PRIMARY

8.8 HIGH

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

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

CVSS VectorVendor: cisco

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

EUVD ID Assigned

Apr 01, 2026 - 17:30 euvd

EUVD-2026-17948

Analysis Generated

Apr 01, 2026 - 17:30 vuln.today

CVE Published

Apr 01, 2026 - 16:28 nvd

HIGH 8.8

DescriptionCVE.org

A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with read-only 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.

AnalysisAI

Command injection in Cisco Integrated Management Controller (IMC) web interface allows authenticated attackers with read-only privileges to execute arbitrary commands as root. The CVSS:3.1 vector (AV:N/AC:L/PR:L/UI:N) confirms network-accessible exploitation requiring only low-privilege authentication, with no public exploit identified at time of analysis. EPSS data not provided; CVE-2026 prefix suggests future disclosure.

Technical ContextAI

Cisco Integrated Management Controller (IMC) provides out-of-band management for Cisco UCS standalone servers and E-series infrastructure. This CWE-77 command injection vulnerability stems from improper input validation in the web-based management interface, allowing attackers to inject shell metacharacters or commands into parameters processed by the underlying operating system. The affected CPE strings identify Cisco Unified Computing System (Standalone) and UCS E-Series Software (UCSE) products. Command injection flaws typically occur when application code passes unsanitized user input directly to system shells via functions like exec(), system(), or popen(), enabling attackers to break out of intended command contexts and execute arbitrary code with the privileges of the web service-in this case, root-level access.

RemediationAI

Consult the official Cisco Security Advisory cisco-sa-cimc-cmd-inj-3hKN3bVt at https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-cmd-inj-3hKN3bVt for vendor-confirmed patched software versions and upgrade instructions. Patch availability and specific remediated versions are detailed in the advisory but not independently confirmed in provided intelligence data. As interim mitigations, restrict network access to the Cisco IMC web interface using firewall rules or VPNs to limit exposure to trusted management networks, implement strict role-based access controls to minimize accounts with even read-only privileges, and monitor authentication logs for unusual activity from low-privilege accounts accessing administrative functions. Organizations should prioritize upgrades for internet-facing or broadly accessible IMC instances.