high8.6
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, remo…
Impact
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
| Vendor | Product | Affected versions |
|---|---|---|
| Cisco | Adaptive Security Appliance Software | from 9.12.1 before 9.16.4.85 from 9.17.1 before 9.18.4.66 from 9.19.1 before 9.20.4 from 9.22.1.1 before 9.22.2.4 from 9.23.1 before 9.23.1.7 |
| Cisco | Secure Firewall Threat Defense | from 6.4.0 before 7.0.9 from 7.1.0 before 7.2.11 from 7.3.0 before 7.4.3 from 7.6.0 before 7.6.4 from 7.7.0 before 7.7.11 |