What is the CVSS score of CVE-2026-20036?

CVE-2026-20036 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%.

Which versions of Cisco are affected by CVE-2026-20036?

CVE-2026-20036 presents notable security risk, a OS command injection vulnerability rated CVSS 6.5. Exploitation could allow attackers to execute code or inject malicious input.

How to fix or mitigate CVE-2026-20036?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Validate input sanitization for user-controlled parameters.

Cisco CVE-2026-20036

MEDIUM

OS Command Injection (CWE-78)

2026-02-25 psirt@cisco.com

Cisco

6.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

CVE Published

Feb 25, 2026 - 17:25 nvd

MEDIUM 6.5

DescriptionCVE.org

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.

AnalysisAI

Cisco UCS Manager's CLI and web management interfaces are vulnerable to OS command injection when authenticated administrators submit specially crafted input due to inadequate argument validation. An attacker with valid admin credentials can exploit this to execute arbitrary commands as root on the affected device. No patch is currently available for this vulnerability.

Technical ContextAI

This vulnerability (CWE-78: OS Command Injection) exists in the CLI and web-based management component. 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