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8.6 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…

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 and versions

Product Affected versions Fixed in
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.23 9.23.1 → 9.23.1.3 No fix stated
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.22 9.22.1.1 → 9.22.2 No fix stated
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20 9.20.1 → 9.20.3.20 No fix stated
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.19 9.19.1 → 9.19.1.42 No fix stated
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18 9.18.1 → 9.18.4.57 No fix stated
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.17 9.17.1 → 9.17.1.46 No fix stated
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16 9.16.1 → 9.16.4.84 No fix stated
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12 9.12.1 → 9.12.4.67 No fix stated
Cisco Secure Firewall Threat Defense (FTD) Software 7.7 7.7.0 → 7.7.10.1 No fix stated
Show the 7 other branches
Product Affected versions Fixed in
Cisco Secure Firewall Threat Defense (FTD) Software 7.6 7.6.0 → 7.6.2.1 No fix stated
Cisco Secure Firewall Threat Defense (FTD) Software 7.4 7.4.0 → 7.4.2.4 No fix stated
Cisco Secure Firewall Threat Defense (FTD) Software 7.3 7.3.0 → 7.3.1.2 No fix stated
Cisco Secure Firewall Threat Defense (FTD) Software 7.2 7.2.0 → 7.2.10.2 No fix stated
Cisco Secure Firewall Threat Defense (FTD) Software 7.1 7.1.0 → 7.1.0.3 No fix stated
Cisco Secure Firewall Threat Defense (FTD) Software 7.0 7.0.0 → 7.0.8.1 No fix stated
Cisco Secure Firewall Threat Defense (FTD) Software 6.4 6.4.0 → 6.4.0.18 No fix stated

References

Timeline

  1. Published
  2. Last modified

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