CVE-2026-20070
MEDIUM EPSS 17.7%
Published Mar 4, 20263mo ago · Modified May 4, 20261mo ago
6.1 CVSS 3.1
Published Mar 4, 2026 3mo ago
Last Modified May 4, 2026 1mo ago
Description
A vulnerability in the VPN web services component of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a browser that is accessing an affected device. This vulnerability is due to improper validation of user-supplied input in HTTP requests. An attacker could exploit this vulnerability by persuading a user to follow a link to a malicious website that is designed to submit malicious input to the affected application. A successful exploit could allow the attacker to execute arbitrary HTML or script code in the browser in the context of the VPN web server.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None
Threat Intelligence
EPSS Exploit Probability
17.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-80
Affected Products 236
| Vendor | Product | Version | Range |
|---|---|---|---|
| cisco | adaptive_security_appliance_software | 9.12.1 | any |
| cisco | adaptive_security_appliance_software | 9.12.1.2 | any |
| cisco | adaptive_security_appliance_software | 9.12.1.3 | any |
| cisco | adaptive_security_appliance_software | 9.12.2 | any |
| cisco | adaptive_security_appliance_software | 9.12.2.1 | any |
| cisco | adaptive_security_appliance_software | 9.12.2.4 | any |
| cisco | adaptive_security_appliance_software | 9.12.2.5 | any |
| cisco | adaptive_security_appliance_software | 9.12.2.9 | any |
| cisco | adaptive_security_appliance_software | 9.12.3 | any |
| cisco | adaptive_security_appliance_software | 9.12.3.2 | any |
| cisco | adaptive_security_appliance_software | 9.12.3.7 | any |
| cisco | adaptive_security_appliance_software | 9.12.3.9 | any |
| cisco | adaptive_security_appliance_software | 9.12.3.12 | any |
| cisco | adaptive_security_appliance_software | 9.12.4 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.2 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.4 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.7 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.8 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.10 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.13 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.18 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.24 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.26 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.29 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.30 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.35 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.37 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.38 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.39 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.40 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.41 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.47 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.48 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.50 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.52 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.54 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.55 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.56 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.58 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.62 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.65 | any |
| cisco | adaptive_security_appliance_software | 9.12.4.67 | any |
| cisco | adaptive_security_appliance_software | 9.16.1 | any |
| cisco | adaptive_security_appliance_software | 9.16.1.28 | any |
| cisco | adaptive_security_appliance_software | 9.16.2 | any |
| cisco | adaptive_security_appliance_software | 9.16.2.3 | any |
| cisco | adaptive_security_appliance_software | 9.16.2.7 | any |
| cisco | adaptive_security_appliance_software | 9.16.2.11 | any |
| cisco | adaptive_security_appliance_software | 9.16.2.13 | any |
| cisco | adaptive_security_appliance_software | 9.16.2.14 | any |
| cisco | adaptive_security_appliance_software | 9.16.3 | any |
| cisco | adaptive_security_appliance_software | 9.16.3.3 | any |
| cisco | adaptive_security_appliance_software | 9.16.3.14 | any |
| cisco | adaptive_security_appliance_software | 9.16.3.15 | any |
| cisco | adaptive_security_appliance_software | 9.16.3.19 | any |
| cisco | adaptive_security_appliance_software | 9.16.3.23 | any |
| cisco | adaptive_security_appliance_software | 9.16.4 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.9 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.14 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.19 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.27 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.38 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.39 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.42 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.48 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.55 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.57 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.61 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.62 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.67 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.70 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.71 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.76 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.82 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.84 | any |
| cisco | adaptive_security_appliance_software | 9.16.4.85 | any |
| cisco | adaptive_security_appliance_software | 9.17.1 | any |
| cisco | adaptive_security_appliance_software | 9.17.1.7 | any |
| cisco | adaptive_security_appliance_software | 9.17.1.9 | any |
| cisco | adaptive_security_appliance_software | 9.17.1.10 | any |
| cisco | adaptive_security_appliance_software | 9.17.1.11 | any |
| cisco | adaptive_security_appliance_software | 9.17.1.13 | any |
| cisco | adaptive_security_appliance_software | 9.17.1.15 | any |
| cisco | adaptive_security_appliance_software | 9.17.1.20 | any |
| cisco | adaptive_security_appliance_software | 9.17.1.30 | any |
| cisco | adaptive_security_appliance_software | 9.17.1.33 | any |
| cisco | adaptive_security_appliance_software | 9.17.1.39 | any |
| cisco | adaptive_security_appliance_software | 9.17.1.45 | any |
| cisco | adaptive_security_appliance_software | 9.17.1.46 | any |
| cisco | adaptive_security_appliance_software | 9.18.1 | any |
| cisco | adaptive_security_appliance_software | 9.18.1.3 | any |
| cisco | adaptive_security_appliance_software | 9.18.2 | any |
| cisco | adaptive_security_appliance_software | 9.18.2.5 | any |
| cisco | adaptive_security_appliance_software | 9.18.2.7 | any |
| cisco | adaptive_security_appliance_software | 9.18.2.8 | any |
| cisco | adaptive_security_appliance_software | 9.18.3 | any |
| cisco | adaptive_security_appliance_software | 9.18.3.39 | any |
| cisco | adaptive_security_appliance_software | 9.18.3.46 | any |
| cisco | adaptive_security_appliance_software | 9.18.3.53 | any |
| cisco | adaptive_security_appliance_software | 9.18.3.55 | any |
| cisco | adaptive_security_appliance_software | 9.18.3.56 | any |
| cisco | adaptive_security_appliance_software | 9.18.4 | any |
| cisco | adaptive_security_appliance_software | 9.18.4.5 | any |
| cisco | adaptive_security_appliance_software | 9.18.4.8 | any |
| cisco | adaptive_security_appliance_software | 9.18.4.22 | any |
| cisco | adaptive_security_appliance_software | 9.18.4.24 | any |
| cisco | adaptive_security_appliance_software | 9.18.4.29 | any |
| cisco | adaptive_security_appliance_software | 9.18.4.34 | any |
| cisco | adaptive_security_appliance_software | 9.18.4.40 | any |
| cisco | adaptive_security_appliance_software | 9.18.4.47 | any |
| cisco | adaptive_security_appliance_software | 9.18.4.50 | any |
| cisco | adaptive_security_appliance_software | 9.18.4.52 | any |
| cisco | adaptive_security_appliance_software | 9.18.4.53 | any |
| cisco | adaptive_security_appliance_software | 9.18.4.57 | any |
| cisco | adaptive_security_appliance_software | 9.18.4.66 | any |
| cisco | adaptive_security_appliance_software | 9.18.4.67 | any |
| cisco | adaptive_security_appliance_software | 9.18.4.68 | any |
| cisco | adaptive_security_appliance_software | 9.19.1 | any |
| cisco | adaptive_security_appliance_software | 9.19.1.5 | any |
| cisco | adaptive_security_appliance_software | 9.19.1.9 | any |
| cisco | adaptive_security_appliance_software | 9.19.1.12 | any |
| cisco | adaptive_security_appliance_software | 9.19.1.18 | any |
| cisco | adaptive_security_appliance_software | 9.19.1.22 | any |
| cisco | adaptive_security_appliance_software | 9.19.1.24 | any |
| cisco | adaptive_security_appliance_software | 9.19.1.27 | any |
| cisco | adaptive_security_appliance_software | 9.19.1.28 | any |
| cisco | adaptive_security_appliance_software | 9.19.1.31 | any |
| cisco | adaptive_security_appliance_software | 9.19.1.37 | any |
| cisco | adaptive_security_appliance_software | 9.19.1.38 | any |
| cisco | adaptive_security_appliance_software | 9.19.1.42 | any |
| cisco | adaptive_security_appliance_software | 9.20.1 | any |
| cisco | adaptive_security_appliance_software | 9.20.1.5 | any |
| cisco | adaptive_security_appliance_software | 9.20.2 | any |
| cisco | adaptive_security_appliance_software | 9.20.2.10 | any |
| cisco | adaptive_security_appliance_software | 9.20.2.21 | any |
| cisco | adaptive_security_appliance_software | 9.20.2.22 | any |
| cisco | adaptive_security_appliance_software | 9.20.3 | any |
| cisco | adaptive_security_appliance_software | 9.20.3.4 | any |
| cisco | adaptive_security_appliance_software | 9.20.3.7 | any |
| cisco | adaptive_security_appliance_software | 9.20.3.9 | any |
| cisco | adaptive_security_appliance_software | 9.20.3.10 | any |
| cisco | adaptive_security_appliance_software | 9.20.3.13 | any |
| cisco | adaptive_security_appliance_software | 9.20.3.16 | any |
| cisco | adaptive_security_appliance_software | 9.20.3.20 | any |
| cisco | adaptive_security_appliance_software | 9.20.4 | any |
| cisco | adaptive_security_appliance_software | 9.20.4.7 | any |
| cisco | adaptive_security_appliance_software | 9.20.4.10 | any |
| cisco | adaptive_security_appliance_software | 9.22.1.1 | any |
| cisco | adaptive_security_appliance_software | 9.22.1.2 | any |
| cisco | adaptive_security_appliance_software | 9.22.1.3 | any |
| cisco | adaptive_security_appliance_software | 9.22.1.6 | any |
| cisco | adaptive_security_appliance_software | 9.22.2 | any |
| cisco | adaptive_security_appliance_software | 9.22.2.4 | any |
| cisco | adaptive_security_appliance_software | 9.22.2.9 | any |
| cisco | adaptive_security_appliance_software | 9.22.2.13 | any |
| cisco | adaptive_security_appliance_software | 9.22.2.14 | any |
| cisco | adaptive_security_appliance_software | 9.23.1 | any |
| cisco | adaptive_security_appliance_software | 9.23.1.3 | any |
| cisco | adaptive_security_appliance_software | 9.23.1.7 | any |
| cisco | adaptive_security_appliance_software | 9.23.1.13 | any |
| cisco | adaptive_security_appliance_software | 9.23.1.19 | any |
| cisco | firepower_threat_defense | 6.4.0 | any |
| cisco | firepower_threat_defense | 6.4.0.1 | any |
| cisco | firepower_threat_defense | 6.4.0.2 | any |
| cisco | firepower_threat_defense | 6.4.0.3 | any |
| cisco | firepower_threat_defense | 6.4.0.4 | any |
| cisco | firepower_threat_defense | 6.4.0.5 | any |
| cisco | firepower_threat_defense | 6.4.0.6 | any |
| cisco | firepower_threat_defense | 6.4.0.7 | any |
| cisco | firepower_threat_defense | 6.4.0.8 | any |
| cisco | firepower_threat_defense | 6.4.0.9 | any |
| cisco | firepower_threat_defense | 6.4.0.10 | any |
| cisco | firepower_threat_defense | 6.4.0.11 | any |
| cisco | firepower_threat_defense | 6.4.0.12 | any |
| cisco | firepower_threat_defense | 6.4.0.13 | any |
| cisco | firepower_threat_defense | 6.4.0.14 | any |
| cisco | firepower_threat_defense | 6.4.0.15 | any |
| cisco | firepower_threat_defense | 6.4.0.16 | any |
| cisco | firepower_threat_defense | 6.4.0.17 | any |
| cisco | firepower_threat_defense | 6.4.0.18 | any |
| cisco | firepower_threat_defense | 7.0.0 | any |
| cisco | firepower_threat_defense | 7.0.0.1 | any |
| cisco | firepower_threat_defense | 7.0.1 | any |
| cisco | firepower_threat_defense | 7.0.1.1 | any |
| cisco | firepower_threat_defense | 7.0.2 | any |
| cisco | firepower_threat_defense | 7.0.2.1 | any |
| cisco | firepower_threat_defense | 7.0.3 | any |
| cisco | firepower_threat_defense | 7.0.4 | any |
| cisco | firepower_threat_defense | 7.0.5 | any |
| cisco | firepower_threat_defense | 7.0.6 | any |
| cisco | firepower_threat_defense | 7.0.6.1 | any |
| cisco | firepower_threat_defense | 7.0.6.2 | any |
| cisco | firepower_threat_defense | 7.0.6.3 | any |
| cisco | firepower_threat_defense | 7.0.7 | any |
| cisco | firepower_threat_defense | 7.0.8 | any |
| cisco | firepower_threat_defense | 7.0.8.1 | any |
| cisco | firepower_threat_defense | 7.1.0 | any |
| cisco | firepower_threat_defense | 7.1.0.1 | any |
| cisco | firepower_threat_defense | 7.1.0.2 | any |
| cisco | firepower_threat_defense | 7.1.0.3 | any |
| cisco | firepower_threat_defense | 7.2.0 | any |
| cisco | firepower_threat_defense | 7.2.0.1 | any |
| cisco | firepower_threat_defense | 7.2.1 | any |
| cisco | firepower_threat_defense | 7.2.2 | any |
| cisco | firepower_threat_defense | 7.2.3 | any |
| cisco | firepower_threat_defense | 7.2.4 | any |
| cisco | firepower_threat_defense | 7.2.4.1 | any |
| cisco | firepower_threat_defense | 7.2.5 | any |
| cisco | firepower_threat_defense | 7.2.5.1 | any |
| cisco | firepower_threat_defense | 7.2.5.2 | any |
| cisco | firepower_threat_defense | 7.2.6 | any |
| cisco | firepower_threat_defense | 7.2.7 | any |
| cisco | firepower_threat_defense | 7.2.8 | any |
| cisco | firepower_threat_defense | 7.2.8.1 | any |
| cisco | firepower_threat_defense | 7.2.9 | any |
| cisco | firepower_threat_defense | 7.2.10 | any |
| cisco | firepower_threat_defense | 7.2.10.2 | any |
| cisco | firepower_threat_defense | 7.3.0 | any |
| cisco | firepower_threat_defense | 7.3.1 | any |
| cisco | firepower_threat_defense | 7.3.1.1 | any |
| cisco | firepower_threat_defense | 7.3.1.2 | any |
| cisco | firepower_threat_defense | 7.4.0 | any |
| cisco | firepower_threat_defense | 7.4.1 | any |
| cisco | firepower_threat_defense | 7.4.1.1 | any |
| cisco | firepower_threat_defense | 7.4.2 | any |
| cisco | firepower_threat_defense | 7.4.2.1 | any |
| cisco | firepower_threat_defense | 7.4.2.2 | any |
| cisco | firepower_threat_defense | 7.4.2.3 | any |
| cisco | firepower_threat_defense | 7.4.2.4 | any |
| cisco | firepower_threat_defense | 7.6.0 | any |
| cisco | firepower_threat_defense | 7.6.1 | any |
| cisco | firepower_threat_defense | 7.6.2 | any |
| cisco | firepower_threat_defense | 7.6.2.1 | any |
| cisco | firepower_threat_defense | 7.7.0 | any |
| cisco | firepower_threat_defense | 7.7.10 | any |
| cisco | firepower_threat_defense | 7.7.10.1 | any |
References 1
- sec.cloudapps.cisco.com https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-webvpn-xss-uwjc4HR
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.