Cisco Unified Computing System up to 6.0(1.250194) Web-based Management Interface code injection

Summaryinfo

A vulnerability was found in Cisco Unified Computing System and classified as very critical. Impacted is an unknown function of the component Web-based Management Interface. The manipulation results in code injection. This vulnerability is reported as CVE-2026-20200. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as very critical, was found in Cisco Unified Computing System. Affected is an unknown code of the component Web-based Management Interface. The manipulation with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with low privileges to execute arbitrary commands on the underlying operating system of an affected system and elevate privileges to root.  This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by entering crafted inputs 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 traded as CVE-2026-20200 since 10/08/2025. The exploitability is told to be easy. It is possible to launch the attack 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 08/05/2026). The MITRE ATT&CK project declares the attack technique as T1059.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Virtualization Software

Vendor

• Cisco

Name

• Unified Computing System

Version

• 4.3(1.230097)
• 4.3(1.230124)
• 4.3(1.230138)
• 4.3(2.230207)
• 4.3(2.230270)
• 4.3(2.240002)
• 4.3(3.240022)
• 4.3(3.240043)
• 4.3(4.240142)
• 4.3(4.240152)
• 4.3(4.241014)
• 4.3(4.241063)
• 4.3(4.242028)
• 4.3(4.242038)
• 4.3(4.242066)
• 4.3(4.252001)
• 4.3(4.252002)
• 4.3(5.240021)
• 4.3(5.250001)
• 4.3(5.250030)
• 4.3(5.250033)
• 4.3(5.250043)
• 4.3(5.250045)
• 4.3(6.250039)
• 4.3(6.250040)
• 4.3(6.250044)
• 4.3(6.250053)
• 4.3(6.250060)
• 4.3(6.250101)
• 4.3(6.250117)
• 4.3(6.260003)
• 4.3(6.260017)
• 6.0(1.250127)
• 6.0(1.250130)
• 6.0(1.250131)
• 6.0(1.250174)
• 6.0(1.250192)
• 6.0(1.250194)

License

• commercial

Website

• Vendor: https://www.cisco.com/

CPE 2.3info

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