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TI-2026-16315 Aliases CVE-2026-20102GHSA-rmc4-86ph-8m7j

Cross-site scripting in Cisco Secure Firewall Adaptive Security Appliance Software

Priority LOW 27CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

A vulnerability in the SAML 2.0 single sign-on (SSO) feature of Cisco Secure Firewall 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 the SAML feature and access sensitive, browser-based information. This vulnerability is due to insufficient input validation of multiple HTTP parameters. An attacker could exploit this vulnerability by persuading a user to access a malicious link. A successful exploit could allow the attacker to conduct a reflected XSS attack through an affected device.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00307 23rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Secure Firewall Adaptive Security Appliance (ASA) Software9.16.1; 9.16.1.28; 9.16.2; 9.16.2.3; 9.16.2.7; 9.17.1; 9.16.2.11; 9.16.2.13; 9.16.2.14; 9.17.1.7; 9.17.1.9; 9.17.1.10; 9.17.1.11; 9.17.1.13; 9.17.1.15; 9.17.1.20; 9.17.1.30; 9.17.1.33; 9.17.1.39; 9.17.1.45; 9.17.1.46; 9.23.1.13; 9.20.4.7; 9.22.2.13; 9.18.4.66; 9.20.4.10; 9.23.1.19; 9.18.4.67—No fix listedCNA
CiscoCisco Secure Firewall Threat Defense (FTD) Software7.0.0; 7.0.0.1; 7.0.1; 7.1.0; 7.0.1.1; 7.1.0.1; 7.1.0.2; 7.1.0.3—No fix listedCNA
  • Cisco Secure Firewall Adaptive Security Appliance (ASA) Software VendorCisco Affected 9.16.1; 9.16.1.28; 9.16.2; 9.16.2.3; 9.16.2.7; 9.17.1; 9.16.2.11; 9.16.2.13; 9.16.2.14; 9.17.1.7; 9.17.1.9; 9.17.1.10; 9.17.1.11; 9.17.1.13; 9.17.1.15; 9.17.1.20; 9.17.1.30; 9.17.1.33; 9.17.1.39; 9.17.1.45; 9.17.1.46; 9.23.1.13; 9.20.4.7; 9.22.2.13; 9.18.4.66; 9.20.4.10; 9.23.1.19; 9.18.4.67 Fixed in — No fix listed CNA
  • Cisco Secure Firewall Threat Defense (FTD) Software VendorCisco Affected 7.0.0; 7.0.0.1; 7.0.1; 7.1.0; 7.0.1.1; 7.1.0.1; 7.1.0.2; 7.1.0.3 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*9.16.1 to before 9.16.4.89; 9.17.1 to before 9.18.4.71; 9.20.1 to before 9.20.4.19; 9.22.1.1 to before 9.22.2.32; 9.23.1 to before 9.23.1.26VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*7.0.0 to before 7.0.9; 7.1.0 to before 7.2.11; 7.4.0 to before 7.4.3; 7.6.0 to before 10.0.0VulnerableCisco
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* Versions 9.16.1 to before 9.16.4.89; 9.17.1 to before 9.18.4.71; 9.20.1 to before 9.20.4.19; 9.22.1.1 to before 9.22.2.32; 9.23.1 to before 9.23.1.26 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:* Versions 7.0.0 to before 7.0.9; 7.1.0 to before 7.2.11; 7.4.0 to before 7.4.3; 7.6.0 to before 10.0.0 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-20102
  2. 2026-10-03 Alias added: GHSA-rmc4-86ph-8m7j

References

Advisory 1

  • TI-2025-14628 Buffer overflow in Cisco Secure Firewall Adaptive Security Appliance Software KEVCVSS 3.1CRITICAL 9.9
  • TI-2016-05454 Buffer overflow in Cisco Adaptive Security Appliance (ASA) Software through 9.4.2.3 on… KEVCVSS 3.1HIGH 8.8
  • TI-2023-06973 Authentication bypass in Cisco Adaptive Security Appliance Software KEVCVSS 3.1CRITICAL 9.1
  • TI-2026-82192 Denial of service in Cisco Secure Firewall ASA and FTD SSL VPN KEVCVSS 3.1HIGH 8.6
  • TI-2026-16533 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense… KEVCVSS 3.1HIGH 8.6
  • TI-2025-14657 Missing authorization in Cisco Secure Firewall Adaptive Security Appliance Software KEVCVSS 3.1HIGH 8.6
See all 354 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences