Skip to content
CVE PROGRAM SOURCE RECORD8.6 High

CVE-2026-20101

A vulnerability in the SAML 2.0 single sign-on (SSO) feature of Cisco Secure Firewall ASA Software and Secure FTD Software could allow an unauthenticated, remote attacker to cause

Description

A vulnerability in the SAML 2.0 single sign-on (SSO) feature of Cisco Secure Firewall ASA Software and Secure FTD Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a DoS condition. This vulnerability is due to insufficient error checking when processing SAML messages. An attacker could exploit this vulnerability by sending crafted SAML messages to the SAML service. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Cisco Cisco Secure Firewall Adaptive Security Appliance (ASA) Software

  • 9.12.1affected
  • 9.12.1.2affected
  • 9.12.1.3affected
  • 9.12.2affected
  • 9.12.2.4affected
  • 9.12.2.5affected
  • 9.12.2.9affected
  • 9.12.3affected
  • 9.12.3.2affected
  • 9.12.3.7affected
  • 9.12.4affected
  • 9.12.3.12affected
  • 9.12.3.9affected
  • 9.12.2.1affected
  • 9.12.4.2affected
  • 9.12.4.4affected
  • 9.12.4.7affected
  • 9.12.4.10affected
  • 9.12.4.13affected
  • 9.12.4.8affected
  • 9.12.4.18affected
  • 9.12.4.24affected
  • 9.12.4.26affected
  • 9.12.4.29affected
  • 9.12.4.30affected
  • 9.12.4.35affected
  • 9.12.4.37affected
  • 9.12.4.38affected
  • 9.12.4.39affected
  • 9.12.4.40affected
  • 9.12.4.41affected
  • 9.12.4.47affected
  • 9.12.4.48affected
  • 9.12.4.50affected
  • 9.12.4.52affected
  • 9.12.4.54affected
  • 9.12.4.55affected
  • 9.12.4.56affected
  • 9.12.4.58affected
  • 9.12.4.62affected
  • 9.12.4.65affected
  • 9.12.4.67affected
  • 9.16.1affected
  • 9.16.1.28affected
  • 9.16.2affected
  • 9.16.2.3affected
  • 9.16.2.7affected
  • 9.16.2.11affected
  • 9.16.2.13affected
  • 9.16.2.14affected
  • 9.16.3affected
  • 9.16.3.3affected
  • 9.16.3.14affected
  • 9.16.3.15affected
  • 9.16.3.19affected
  • 9.16.3.23affected
  • 9.16.4affected
  • 9.16.4.9affected
  • 9.16.4.14affected
  • 9.16.4.19affected
  • 9.16.4.27affected
  • 9.16.4.38affected
  • 9.16.4.39affected
  • 9.16.4.42affected
  • 9.16.4.48affected
  • 9.16.4.55affected
  • 9.16.4.57affected
  • 9.16.4.61affected
  • 9.16.4.62affected
  • 9.16.4.67affected
  • 9.16.4.70affected
  • 9.16.4.71affected
  • 9.16.4.76affected
  • 9.16.4.82affected
  • 9.16.4.84affected
  • 9.17.1affected
  • 9.17.1.7affected
  • 9.17.1.9affected
  • 9.17.1.10affected
  • 9.17.1.11affected
  • 9.17.1.13affected
  • 9.17.1.15affected
  • 9.17.1.20affected
  • 9.17.1.30affected
  • 9.17.1.33affected
  • 9.17.1.39affected
  • 9.17.1.45affected
  • 9.17.1.46affected
  • 9.18.1affected
  • 9.18.1.3affected
  • 9.18.2affected
  • 9.18.2.5affected
  • 9.18.2.7affected
  • 9.18.2.8affected
  • 9.18.3affected
  • 9.18.3.39affected
  • 9.18.3.46affected
  • 9.18.3.53affected
  • 9.18.3.55affected
  • 9.18.3.56affected
  • 9.18.4affected
  • 9.18.4.5affected
  • 9.18.4.8affected
  • 9.18.4.22affected
  • 9.18.4.24affected
  • 9.18.4.29affected
  • 9.18.4.34affected
  • 9.18.4.40affected
  • 9.18.4.47affected
  • 9.18.4.50affected
  • 9.18.4.52affected
  • 9.18.4.53affected
  • 9.18.4.57affected
  • 9.19.1affected
  • 9.19.1.5affected
  • 9.19.1.9affected
  • 9.19.1.12affected
  • 9.19.1.18affected
  • 9.19.1.22affected
  • 9.19.1.24affected
  • 9.19.1.27affected
  • 9.19.1.28affected
  • 9.19.1.31affected
  • 9.19.1.37affected
  • 9.19.1.38affected
  • 9.19.1.42affected
  • 9.20.1affected
  • 9.20.1.5affected
  • 9.20.2affected
  • 9.20.2.10affected
  • 9.20.2.21affected
  • 9.20.2.22affected
  • 9.20.3affected
  • 9.20.3.4affected
  • 9.20.3.7affected
  • 9.20.3.9affected
  • 9.20.3.10affected
  • 9.20.3.13affected
  • 9.20.3.16affected
  • 9.20.3.20affected
  • 9.22.1.1affected
  • 9.22.1.3affected
  • 9.22.1.2affected
  • 9.22.1.6affected
  • 9.22.2affected
  • 9.23.1affected
  • 9.23.1.3affected

Cisco Cisco Secure Firewall Threat Defense (FTD) Software

  • 6.4.0affected
  • 6.4.0.1affected
  • 6.4.0.3affected
  • 6.4.0.2affected
  • 6.4.0.4affected
  • 6.4.0.5affected
  • 6.4.0.6affected
  • 6.4.0.7affected
  • 6.4.0.8affected
  • 6.4.0.9affected
  • 6.4.0.10affected
  • 6.4.0.11affected
  • 6.4.0.12affected
  • 6.4.0.13affected
  • 6.4.0.14affected
  • 6.4.0.15affected
  • 6.4.0.16affected
  • 6.4.0.17affected
  • 6.4.0.18affected
  • 7.0.0affected
  • 7.0.0.1affected
  • 7.0.1affected
  • 7.0.1.1affected
  • 7.0.2affected
  • 7.0.2.1affected
  • 7.0.3affected
  • 7.0.4affected
  • 7.0.5affected
  • 7.0.6affected
  • 7.0.6.1affected
  • 7.0.6.2affected
  • 7.0.6.3affected
  • 7.0.7affected
  • 7.0.8affected
  • 7.0.8.1affected
  • 7.1.0affected
  • 7.1.0.1affected
  • 7.1.0.2affected
  • 7.1.0.3affected
  • 7.2.0affected
  • 7.2.0.1affected
  • 7.2.1affected
  • 7.2.2affected
  • 7.2.3affected
  • 7.2.4affected
  • 7.2.4.1affected
  • 7.2.5affected
  • 7.2.5.1affected
  • 7.2.6affected
  • 7.2.7affected
  • 7.2.5.2affected
  • 7.2.8affected
  • 7.2.8.1affected
  • 7.2.9affected
  • 7.2.10affected
  • 7.2.10.2affected
  • 7.3.0affected
  • 7.3.1affected
  • 7.3.1.1affected
  • 7.3.1.2affected
  • 7.4.0affected
  • 7.4.1affected
  • 7.4.1.1affected
  • 7.4.2affected
  • 7.4.2.1affected
  • 7.4.2.2affected
  • 7.4.2.3affected
  • 7.4.2.4affected
  • 7.6.0affected
  • 7.6.1affected
  • 7.6.2affected
  • 7.6.2.1affected
  • 7.7.0affected
  • 7.7.10affected
  • 7.7.10.1affected

References