XSS in Cisco Adaptive_security_appliance_software
CVE-2026-20070
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 cros…
EPSS: 0.000 (1.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Cisco Adaptive_security_appliance_software — versions 9.12.1, 9.12.1.2, 9.12.1.3
- Cisco Secure Firewall Adaptive Security Appliance (Asa) Software — versions 9.12.3, 9.12.1, 9.12.2
- Cisco Secure Firewall Threat Defense (Ftd) Software — versions 6.4.0.1, 6.4.0.2, 6.4.0.5
- Cisco Firepower_threat_defense — versions 6.4.0, 6.4.0.1, 6.4.0.2
Weakness classification (CWE)
References
- cisco-sa-asaftd-webvpn-xss-uwjc4HR (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-20070?
- CVE-2026-20070 is a medium-severity vulnerability in Cisco Adaptive_security_appliance_software, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.1/10. Published 2026-03-04.
- How severe is CVE-2026-20070?
- Medium severity. CVSS v3 base score is 6.1 out of 10.