CVE-2026-20036 - Vulnerability Details

- Cisco UCS Manager Software Command Injection Vulnerability

Description

A vulnerability in the CLI and web-based management interface of Cisco UCS Manager Software could allow an authenticated, remote attacker with valid administrative privileges to execute arbitrary commands on the underlying operating system of an affected device. 
 
This vulnerability is due to insufficient input validation of command arguments that are supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted input to the affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system of an affected device with root-level privileges.

Published: 2026-02-25

Score: 6.5 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Impact

A vulnerability in the CLI and web-based management interface of Cisco UCS Manager Software allows an authenticated remote attacker with administrative privileges to execute arbitrary commands with root‑level privileges due to insufficient input validation of command arguments. The resulting Remote Code Execution compromises confidentiality, integrity, and availability of the affected device. This weakness is classified as CWE‑78.

Affected Systems

The affected product is Cisco Unified Computing System (Managed) using UCS Manager Software. Specific version information is not supplied in the advisory.

Risk and Exploitability

The CVSS v3 base score is 6.5, indicating a medium severity. The EPSS score is below 1 % indicating a low probability of exploitation; the vulnerability is not listed in the CISA KEV catalog. Because exploitation requires valid administrative credentials, the attack surface is limited to trusted users, but the impact of a successful exploit is critical. Organizations should treat this as a moderate risk that warrants timely mitigation.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Cisco

Cisco Unified Computing System (Managed)

unknown

Version	Status	Constraints
`4.0(4h)`	affected	—
`4.1(1a)`	affected	—
`4.0(1c)`	affected	—
`4.0(4a)`	affected	—
`4.0(1a)`	affected	—
`4.0(1d)`	affected	—
`4.1(1c)`	affected	—
`4.0(2a)`	affected	—
`4.0(4g)`	affected	—
`4.0(2e)`	affected	—
`4.0(4c)`	affected	—
`4.0(4f)`	affected	—
`4.0(1b)`	affected	—
`4.0(2b)`	affected	—
`4.0(2d)`	affected	—
`4.1(1b)`	affected	—
`4.0(4d)`	affected	—
`4.0(4e)`	affected	—
`4.0(4b)`	affected	—
`4.1(2a)`	affected	—
`4.1(1d)`	affected	—
`4.0(4i)`	affected	—
`4.1(1e)`	affected	—
`4.1(2b)`	affected	—
`4.0(4k)`	affected	—
`4.1(3a)`	affected	—
`4.1(3b)`	affected	—
`4.1(2c)`	affected	—
`4.0(4l)`	affected	—
`4.1(4a)`	affected	—
`4.1(3c)`	affected	—
`4.1(3d)`	affected	—
`4.2(1c)`	affected	—
`4.2(1d)`	affected	—
`4.0(4m)`	affected	—
`4.1(3e)`	affected	—
`4.2(1f)`	affected	—
`4.1(3f)`	affected	—
`4.2(1i)`	affected	—
`4.1(3h)`	affected	—
`4.2(1k)`	affected	—
`4.2(1l)`	affected	—
`4.0(4n)`	affected	—
`4.2(1m)`	affected	—
`4.1(3i)`	affected	—
`4.2(2a)`	affected	—
`4.2(1n)`	affected	—
`4.1(3j)`	affected	—
`4.2(2c)`	affected	—
`4.2(2d)`	affected	—
`4.2(3b)`	affected	—
`4.1(3k)`	affected	—
`4.0(4o)`	affected	—
`4.2(2e)`	affected	—
`4.2(3d)`	affected	—
`4.2(3e)`	affected	—
`4.2(3g)`	affected	—
`4.1(3l)`	affected	—
`4.3(2b)`	affected	—
`4.2(3h)`	affected	—
`4.2(3i)`	affected	—
`4.3(2c)`	affected	—
`4.1(3m)`	affected	—
`4.3(2e)`	affected	—
`4.3(3a)`	affected	—
`4.2(3j)`	affected	—
`4.3(3c)`	affected	—
`4.3(4a)`	affected	—
`4.2(3k)`	affected	—
`4.3(4b)`	affected	—
`4.3(4c)`	affected	—
`4.2(3l)`	affected	—
`4.3(4d)`	affected	—
`4.3(2f)`	affected	—
`4.2(3m)`	affected	—
`4.3(5a)`	affected	—
`4.3(4e)`	affected	—
`4.1(3n)`	affected	—
`4.3(4f)`	affected	—
`4.2(3n)`	affected	—
`4.3(5c)`	affected	—
`4.2(3o)`	affected	—
`4.3(5d)`	affected	—
`4.3(6a)`	affected	—
`4.3(6b)`	affected	—
`4.3(5e)`	affected	—
`4.3(6c)`	affected	—
`6.0(1b)`	affected	—
`4.2(3p)`	affected	—
`6.0(1c)`	affected	—
`4.3(6d)`	affected	—
`6.0(1d)`	affected	—
`6.0(1e)`	affected	—
`4.3(6e)`	affected	—
`6.0(1f)`	affected	—

No data.

Vendor Product Confidence Versions

Cisco

Unified Computing System Manager

89%

Version	Status	Scheme	Platform
`4.0(4h)`	affected	generic	—
`4.1(1a)`	affected	generic	—
`4.0(1c)`	affected	generic	—
`4.0(4a)`	affected	generic	—
`4.0(1a)`	affected	generic	—
`4.0(1d)`	affected	generic	—
`4.1(1c)`	affected	generic	—
`4.0(2a)`	affected	generic	—
`4.0(4g)`	affected	generic	—
`4.0(2e)`	affected	generic	—
`4.0(4c)`	affected	generic	—
`4.0(4f)`	affected	generic	—
`4.0(1b)`	affected	generic	—
`4.0(2b)`	affected	generic	—
`4.0(2d)`	affected	generic	—
`4.1(1b)`	affected	generic	—
`4.0(4d)`	affected	generic	—
`4.0(4e)`	affected	generic	—
`4.0(4b)`	affected	generic	—
`4.1(2a)`	affected	generic	—
`4.1(1d)`	affected	generic	—
`4.0(4i)`	affected	generic	—
`4.1(1e)`	affected	generic	—
`4.1(2b)`	affected	generic	—
`4.0(4k)`	affected	generic	—
`4.1(3a)`	affected	generic	—
`4.1(3b)`	affected	generic	—
`4.1(2c)`	affected	generic	—
`4.0(4l)`	affected	generic	—
`4.1(4a)`	affected	generic	—
`4.1(3c)`	affected	generic	—
`4.1(3d)`	affected	generic	—
`4.1(2c)`	affected	generic	—
`4.0(4l)`	affected	generic	—
`4.1(4a)`	affected	generic	—
`4.1(3c)`	affected	generic	—
`4.1(3d)`	affected	generic	—
`4.2(1c)`	affected	generic	—
`4.2(1d)`	affected	generic	—
`4.0(4m)`	affected	generic	—
`4.1(3e)`	affected	generic	—
`4.2(1f)`	affected	generic	—
`4.1(3f)`	affected	generic	—
`4.2(1i)`	affected	generic	—
`4.1(3h)`	affected	generic	—
`4.2(1k)`	affected	generic	—
`4.2(1l)`	affected	generic	—
`4.0(4n)`	affected	generic	—
`4.2(1m)`	affected	generic	—
`4.1(3i)`	affected	generic	—
`4.2(2a)`	affected	generic	—
`4.2(1n)`	affected	generic	—
`4.1(3j)`	affected	generic	—
`4.2(2c)`	affected	generic	—
`4.2(2d)`	affected	generic	—
`4.2(3b)`	affected	generic	—
`4.1(3k)`	affected	generic	—
`4.0(4o)`	affected	generic	—
`4.2(2e)`	affected	generic	—
`4.2(3d)`	affected	generic	—
`4.2(3e)`	affected	generic	—
`4.2(3g)`	affected	generic	—
`4.1(3l)`	affected	generic	—
`4.3(2b)`	affected	generic	—
`4.2(3h)`	affected	generic	—
`4.2(3i)`	affected	generic	—
`4.3(2c)`	affected	generic	—
`4.1(3m)`	affected	generic	—
`4.3(2e)`	affected	generic	—
`4.3(3a)`	affected	generic	—
`4.2(3j)`	affected	generic	—
`4.3(3c)`	affected	generic	—
`4.3(4a)`	affected	generic	—
`4.2(3k)`	affected	generic	—
`4.3(4b)`	affected	generic	—
`4.3(4c)`	affected	generic	—
`4.2(3l)`	affected	generic	—
`4.3(4d)`	affected	generic	—
`4.3(2f)`	affected	generic	—
`4.2(3m)`	affected	generic	—
`4.3(5a)`	affected	generic	—
`4.3(4e)`	affected	generic	—
`4.1(3n)`	affected	generic	—
`4.3(4f)`	affected	generic	—
`4.2(3n)`	affected	generic	—
`4.3(5c)`	affected	generic	—
`4.2(3o)`	affected	generic	—
`4.3(5d)`	affected	generic	—
`4.3(6a)`	affected	generic	—
`4.3(6b)`	affected	generic	—
`4.3(5e)`	affected	generic	—
`4.3(6c)`	affected	generic	—
`6.0(1b)`	affected	generic	—
`4.2(3p)`	affected	generic	—
`6.0(1c)`	affected	generic	—
`4.3(6d)`	affected	generic	—
`6.0(1d)`	affected	generic	—
`6.0(1e)`	affected	generic	—
`4.3(6e)`	affected	generic	—
`6.0(1f)`	affected	generic	—

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Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

Deploy Cisco’s latest UCS Manager Software patch that fixes the command injection flaw.
Restrict administrative access to the UCS Manager interface to trusted IP ranges or enforce multi‑factor authentication to limit the attack surface.
Audit and monitor command‑execution logs for suspicious activity, and consider disabling or limiting web‑based CLI access for non‑administrator accounts.

Generated by OpenCVE AI on April 17, 2026 at 15:08 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00057.

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsm-cmdinj-GvxLPeSB

History

Thu, 26 Feb 2026 13:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Cisco Cisco unified Computing System Manager
Vendors & Products		Cisco Cisco unified Computing System Manager

Wed, 25 Feb 2026 22:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Wed, 25 Feb 2026 16:45:00 +0000

Type	Values Removed	Values Added
Description		A vulnerability in the CLI and web-based management interface of Cisco UCS Manager Software could allow an authenticated, remote attacker with valid administrative privileges to execute arbitrary commands on the underlying operating system of an affected device.    This vulnerability is due to insufficient input validation of command arguments that are supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted input to the affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system of an affected device with root-level privileges.
Title		Cisco UCS Manager Software Command Injection Vulnerability
Weaknesses		CWE-78
References		https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsm-cmdinj-GvxLPeSB
Metrics		cvssV3_1 `{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N'}`

Subscriptions

Cisco Unified Computing System Manager

MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2026-02-25T16:14:43.296Z

Updated: 2026-02-26T14:44:05.885Z

Reserved: 2025-10-08T11:59:15.353Z

Link: CVE-2026-20036

Vulnrichment

Updated: 2026-02-25T18:11:09.484Z

NVD

Status : Deferred

Published: 2026-02-25T17:25:24.833

Modified: 2026-04-15T00:35:42.020

Link: CVE-2026-20036

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-04-17T15:15:21Z

Weaknesses

CWE-78

Impact

Affected Systems

Risk and Exploitability

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

Exploitation none

Automatable no

Technical Impact total

Subscriptions

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