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. 

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

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 Firepower Extensible Operating System (FXOS) unknown
Version Status Constraints
2.14.1.131 affected —
2.14.1.143 affected —
2.14.1.163 affected —
2.14.1.167 affected —
2.16.0.128 affected —
Cisco Cisco Secure Firewall Adaptive Security Appliance (ASA) Software unknown
Version Status Constraints
9.12.2 affected —
9.12.1 affected —
9.12.3 affected —
9.12.4 affected —
9.12.3.2 affected —
9.12.3.12 affected —
9.12.2.5 affected —
9.12.1.2 affected —
9.12.2.1 affected —
9.12.3.7 affected —
9.12.2.9 affected —
9.12.3.9 affected —
9.12.1.3 affected —
9.12.4.2 affected —
9.12.4.4 affected —
9.12.4.7 affected —
9.12.4.8 affected —
9.12.4.10 affected —
9.12.4.13 affected —
9.12.4.18 affected —
9.12.4.24 affected —
9.16.1 affected —
9.12.4.26 affected —
9.16.1.28 affected —
9.12.4.29 affected —
9.16.2 affected —
9.12.4.30 affected —
9.16.2.3 affected —
9.12.4.35 affected —
9.16.2.7 affected —
9.12.4.37 affected —
9.17.1 affected —
9.16.2.11 affected —
9.16.2.13 affected —
9.12.4.39 affected —
9.12.4.38 affected —
9.16.2.14 affected —
9.17.1.7 affected —
9.12.4.40 affected —
9.16.3.3 affected —
9.16.3 affected —
9.17.1.9 affected —
9.16.3.14 affected —
9.12.4.41 affected —
9.17.1.10 affected —
9.18.1 affected —
9.12.4.47 affected —
9.16.3.15 affected —
9.18.1.3 affected —
9.17.1.11 affected —
9.12.4.48 affected —
9.18.2 affected —
9.16.3.19 affected —
9.17.1.13 affected —
9.12.4.50 affected —
9.17.1.15 affected —
9.12.4.52 affected —
9.16.3.23 affected —
9.18.2.5 affected —
9.16.4 affected —
9.12.4.54 affected —
9.17.1.20 affected —
9.18.2.7 affected —
9.19.1 affected —
9.16.4.9 affected —
9.12.4.55 affected —
9.18.2.8 affected —
9.16.4.14 affected —
9.18.3 affected —
9.19.1.5 affected —
9.12.4.56 affected —
9.17.1.30 affected —
9.19.1.9 affected —
9.18.3.39 affected —
9.16.4.19 affected —
9.12.4.58 affected —
9.19.1.12 affected —
9.18.3.46 affected —
9.16.4.27 affected —
9.19.1.18 affected —
9.18.3.53 affected —
9.18.3.55 affected —
9.16.4.38 affected —
9.17.1.33 affected —
9.12.4.62 affected —
9.16.4.39 affected —
9.18.3.56 affected —
9.16.4.42 affected —
9.19.1.22 affected —
9.18.4 affected —
9.18.4.5 affected —
9.19.1.24 affected —
9.16.4.48 affected —
9.18.4.8 affected —
9.20.2 affected —
9.19.1.27 affected —
9.12.4.65 affected —
9.16.4.55 affected —
9.18.4.22 affected —
9.20.2.10 affected —
9.16.4.57 affected —
9.19.1.28 affected —
9.17.1.39 affected —
9.12.4.67 affected —
9.18.4.24 affected —
9.20.2.21 affected —
9.16.4.61 affected —
9.19.1.31 affected —
9.18.4.29 affected —
9.20.2.22 affected —
9.16.4.62 affected —
9.18.4.34 affected —
9.20.3 affected —
9.16.4.67 affected —
9.18.4.40 affected —
9.16.4.71 affected —
9.20.3.4 affected —
9.18.4.47 affected —
9.20.3.7 affected —
9.17.1.45 affected —
9.19.1.37 affected —
9.16.4.76 affected —
9.18.4.50 affected —
9.20.3.10 affected —
9.18.4.52 affected —
9.20.3.13 affected —
9.18.4.53 affected —
9.16.4.82 affected —
9.20.3.16 affected —
9.19.1.42 affected —
9.18.4.57 affected —
9.16.4.84 affected —
9.20.3.20 affected —
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(5e) affected —
4.2(3p) affected —

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsfxosxss-7skVE8Zv cve-icon cve-icon
History

Wed, 25 Feb 2026 17:15:00 +0000

Type Values Removed Values Added
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. 
Title Cisco UCS Manager and FXOS Software Stored Cross-Site Scripting Vulnerability
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-02-25T19:05:48.712Z

Reserved: 2025-10-08T11:59:15.368Z

Link: CVE-2026-20091

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-02-25T17:25:26.830

Modified: 2026-02-25T17:25:26.830

Link: CVE-2026-20091

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses