Secure Firewall ASA and FTD
CVE-2026-20091: Cisco UCS Manager and FXOS Software Stored Cross-Site Scripting Vulnerability
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.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityMEDIUMCVSS 3.1 4.8
EPSS0.18%Chance of exploitation in 30 days
Public exploitNot tracked
FixNot yet
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Cisco Firepower Extensible Operating System (FXOS) 2.14 | See the advisory |
| Cisco Firepower Extensible Operating System (FXOS) 2.14 | See the advisory |
| Cisco Firepower Extensible Operating System (FXOS) 2.14 | See the advisory |
| Cisco Firepower Extensible Operating System (FXOS) 2.14 | See the advisory |
| Cisco Firepower Extensible Operating System (FXOS) 2.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(4h) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(1a) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(1c) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(4a) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(1a) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(1d) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(1c) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(2a) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(4g) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(2e) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(4c) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(4f) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(1b) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(2b) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(2d) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(1b) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(4d) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(4e) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(4b) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(2a) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(1d) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(4i) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(1e) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(2b) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(4k) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(3a) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(3b) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(2c) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(4l) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(4a) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(3c) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(3d) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(1c) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(1d) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(4m) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(3e) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(1f) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(3f) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(1i) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(3h) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(1k) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(1l) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(4n) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(1m) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(3i) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(2a) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(1n) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(3j) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(2c) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(2d) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(3b) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(3k) | See the advisory |
| Cisco Unified Computing System (Managed) 4.0(4o) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(2e) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(3d) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(3e) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(3g) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(3l) | See the advisory |
| Cisco Unified Computing System (Managed) 4.3(2b) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(3h) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(3i) | See the advisory |
| Cisco Unified Computing System (Managed) 4.3(2c) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(3m) | See the advisory |
| Cisco Unified Computing System (Managed) 4.3(2e) | See the advisory |
| Cisco Unified Computing System (Managed) 4.3(3a) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(3j) | See the advisory |
| Cisco Unified Computing System (Managed) 4.3(3c) | See the advisory |
| Cisco Unified Computing System (Managed) 4.3(4a) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(3k) | See the advisory |
| Cisco Unified Computing System (Managed) 4.3(4b) | See the advisory |
| Cisco Unified Computing System (Managed) 4.3(4c) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(3l) | See the advisory |
| Cisco Unified Computing System (Managed) 4.3(4d) | See the advisory |
| Cisco Unified Computing System (Managed) 4.3(2f) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(3m) | See the advisory |
| Cisco Unified Computing System (Managed) 4.3(5a) | See the advisory |
| Cisco Unified Computing System (Managed) 4.3(4e) | See the advisory |
| Cisco Unified Computing System (Managed) 4.1(3n) | See the advisory |
| Cisco Unified Computing System (Managed) 4.3(4f) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(3n) | See the advisory |
| Cisco Unified Computing System (Managed) 4.3(5c) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(3o) | See the advisory |
| Cisco Unified Computing System (Managed) 4.3(5d) | See the advisory |
| Cisco Unified Computing System (Managed) 4.3(5e) | See the advisory |
| Cisco Unified Computing System (Managed) 4.2(3p) | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
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.
Exploitation
The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 11 Oct 2026.