CVE-2025-20243: Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threa

Description

A vulnerability in the management and VPN web servers 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 improper validation of user-supplied input on an interface with VPN web services. An attacker could exploit this vulnerability by sending crafted HTTP requests to a targeted web server on an affected device. A successful exploit could allow the attacker to cause a DoS condition when the device reloads.

Affected products

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

Cisco Cisco Adaptive Security Appliance (ASA) Software

Default version status: unknown

9.12.3affected
9.8.3affected
9.12.1affected
9.8.1affected
9.12.2affected
9.8.2.45affected
9.8.2affected
9.8.4affected
9.14.1affected
9.12.4affected
9.8.2.26affected
9.8.2.24affected
9.8.2.15affected
9.8.2.14affected
9.8.2.35affected
9.8.2.20affected
9.8.2.8affected
9.8.2.17affected
9.8.2.28affected
9.8.2.33affected
9.8.2.38affected
9.8.4.25affected
9.12.3.2affected
9.12.3.7affected
9.8.3.18affected
9.8.3.14affected
9.8.4.15affected
9.8.4.8affected
9.8.1.7affected
9.8.3.29affected
9.14.1.10affected
9.12.2.5affected
9.8.4.22affected
9.12.3.12affected
9.8.4.7affected
9.8.4.17affected
9.8.3.16affected
9.8.4.20affected
9.8.3.11affected
9.12.1.3affected
9.8.4.3affected
9.12.2.4affected
9.8.4.12affected
9.12.1.2affected
9.8.3.26affected
9.8.1.5affected
9.12.2.9affected
9.12.3.9affected
9.8.3.21affected
9.8.4.10affected
9.12.2.1affected
9.12.4.2affected
9.14.1.6affected
9.8.3.8affected
9.14.1.15affected
9.14.1.19affected
9.8.4.26affected
9.12.4.4affected
9.14.1.30affected
9.8.4.29affected
9.12.4.7affected
9.14.2affected
9.12.4.8affected
9.8.4.32affected
9.12.4.10affected
9.14.2.4affected
9.14.2.8affected
9.12.4.13affected
9.8.4.33affected
9.14.2.13affected
9.8.4.34affected
9.12.4.18affected
9.8.4.35affected
9.14.2.15affected
9.12.4.24affected
9.16.1affected
9.8.4.39affected
9.14.3affected
9.12.4.26affected
9.16.1.28affected
9.14.3.1affected
9.12.4.29affected
9.14.3.9affected
9.16.2affected
9.12.4.30affected
9.16.2.3affected
9.8.4.40affected
9.14.3.11affected
9.12.4.35affected
9.8.4.41affected
9.14.3.13affected
9.16.2.7affected
9.12.4.37affected
9.14.3.15affected
9.17.1affected
9.16.2.11affected
9.14.3.18affected
9.16.2.13affected
9.12.4.39affected
9.12.4.38affected
9.8.4.43affected
9.14.4affected
9.16.2.14affected
9.17.1.7affected
9.12.4.40affected
9.16.3.3affected
9.14.4.6affected
9.16.3affected
9.16.3.14affected
9.17.1.9affected
9.14.4.7affected
9.12.4.41affected
9.17.1.10affected
9.8.4.44affected
9.18.1affected
9.12.4.47affected
9.14.4.12affected
9.16.3.15affected
9.18.1.3affected
9.17.1.11affected
9.12.4.48affected
9.14.4.13affected
9.18.2affected
9.16.3.19affected
9.17.1.13affected
9.12.4.50affected
9.14.4.14affected
9.17.1.15affected
9.8.4.45affected
9.12.4.52affected
9.14.4.15affected
9.16.3.23affected
9.18.2.5affected
9.16.4affected
9.12.4.54affected
9.14.4.17affected
9.8.4.46affected
9.17.1.20affected
9.18.2.7affected
9.19.1affected
9.16.4.9affected
9.12.4.55affected
9.18.2.8affected
9.14.4.22affected
9.16.4.14affected
9.8.4.48affected
9.18.3affected
9.19.1.5affected
9.14.4.23affected
9.12.4.56affected
9.16.4.18affected
9.17.1.30affected
9.19.1.9affected
9.18.3.39affected
9.16.4.19affected
9.12.4.58affected
9.19.1.12affected
9.18.3.46affected
9.16.4.27affected
9.19.1.18affected
9.18.3.53affected
9.18.3.55affected
9.16.4.38affected
9.17.1.33affected
9.12.4.62affected
9.16.4.39affected
9.18.3.56affected
9.20.1affected
9.16.4.42affected
9.19.1.22affected
9.18.4affected
9.20.1.5affected
9.18.4.5affected
9.19.1.24affected
9.16.4.48affected
9.18.4.8affected
9.20.2affected
9.19.1.27affected
9.12.4.65affected
9.16.4.55affected
9.18.4.22affected
9.20.2.10affected
9.16.4.57affected
9.19.1.28affected
9.17.1.39affected
9.12.4.67affected
9.14.4.24affected
9.18.4.24affected
9.20.2.21affected
9.16.4.61affected
9.19.1.31affected
9.18.4.29affected
9.20.2.22affected
9.16.4.62affected
9.18.4.34affected
9.20.3affected
9.16.4.67affected
9.16.4.70affected
9.18.4.40affected
9.23.1affected
9.22.1.1affected
9.16.4.71affected
9.20.3.4affected
9.18.4.47affected
9.20.3.7affected
9.17.1.45affected
9.19.1.37affected
9.17.1.46affected
9.16.4.76affected
9.20.3.9affected
9.19.1.38affected
9.18.4.50affected
9.22.1.3affected
9.20.3.10affected
9.22.1.2affected
9.18.4.52affected
9.20.3.13affected
9.22.1.6affected
9.18.4.53affected
9.16.4.82affected

Cisco Cisco Firepower Threat Defense Software

Default version status: unknown

6.2.3.14affected
6.4.0.1affected
6.2.3.7affected
6.2.3affected
6.4.0.2affected
6.2.3.9affected
6.2.3.1affected
6.2.3.2affected
6.4.0.5affected
6.2.3.10affected
6.4.0affected
6.4.0.3affected
6.2.3.6affected
6.4.0.4affected
6.2.3.15affected
6.2.3.5affected
6.2.3.4affected
6.2.3.3affected
6.2.3.8affected
6.4.0.6affected
6.2.3.11affected
6.2.3.12affected
6.2.3.13affected
6.4.0.7affected
6.4.0.8affected
6.6.0affected
6.4.0.9affected
6.2.3.16affected
6.6.0.1affected
6.6.1affected
6.4.0.10affected
6.4.0.11affected
6.6.3affected
6.6.4affected
6.4.0.12affected
7.0.0affected
6.2.3.17affected
7.0.0.1affected
6.6.5affected
7.0.1affected
7.1.0affected
6.4.0.13affected
6.6.5.1affected
6.2.3.18affected
7.0.1.1affected
6.4.0.14affected
7.1.0.1affected
6.6.5.2affected
7.0.2affected
6.4.0.15affected
7.2.0affected
7.0.2.1affected
7.0.3affected
6.6.7affected
7.1.0.2affected
7.2.0.1affected
7.0.4affected
7.2.1affected
7.0.5affected
6.4.0.16affected
7.3.0affected
7.2.2affected
7.2.3affected
6.6.7.1affected
7.3.1affected
7.1.0.3affected
7.2.4affected
7.0.6affected
7.2.5affected
7.2.4.1affected
7.3.1.1affected
7.4.0affected
6.4.0.17affected
7.0.6.1affected
7.2.5.1affected
7.4.1affected
7.2.6affected
7.0.6.2affected
7.4.1.1affected
6.6.7.2affected
6.4.0.18affected
7.2.7affected
7.2.5.2affected
7.3.1.2affected
7.2.8affected
7.6.0affected
7.4.2affected
7.2.8.1affected
7.0.6.3affected
7.4.2.1affected
7.2.9affected
7.0.7affected
7.7.0affected
7.4.2.2affected

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-vpn-dos-mfPekA6e ↗