CVE-2026-20091
Published: Feb 25, 2026
Modified: Feb 25, 2026
CVSS v3.1
4.8
Description
A vulnerability in the web-based management interface of Cisco FXOS Software and Cisco UCS Manager Software could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface. This vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected system. An attacker could exploit this vulnerability by injecting malicious data into specific pages of the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. To exploit this vulnerability, the attacker must have valid credentials for a user account with the role of Administrator or AAA Administrator.
| Vendor | Product | Versions |
|---|---|---|
Cisco | Cisco Firepower Extensible Operating System (FXOS) | affected 2.14.1.131affected 2.14.1.143affected 2.14.1.163affected 2.14.1.167affected 2.16.0.128 |
Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | affected 9.12.2affected 9.12.1affected 9.12.3affected 9.12.4affected 9.12.3.2+128 more versions |
Cisco | Cisco Unified Computing System (Managed) | affected 4.0(4h)affected 4.1(1a)affected 4.0(1c)affected 4.0(4a)affected 4.0(1a)+80 more versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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