Cisco Unified Computing System Web-based Management Interface command injection

Summaryinfo

A vulnerability described as critical has been identified in Cisco Unified Computing System and Unified Computing System E-Series Software. Affected is an unknown function of the component Web-based Management Interface. Such manipulation leads to command injection. This vulnerability is documented as CVE-2026-20094. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Cisco Unified Computing System and Unified Computing System E-Series Software (unknown version). It has been rated as critical. Affected by this issue is an unknown code block of the component Web-based Management Interface. The manipulation with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at sec.cloudapps.cisco.com. This vulnerability is handled as CVE-2026-20094 since 10/08/2025. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 04/01/2026). The MITRE ATT&CK project declares the attack technique as T1202.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Virtualization Software

Vendor

• Cisco

Name

• Unified Computing System
• Unified Computing System E-Series Software

License

• commercial

Website

• Vendor: https://www.cisco.com/

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