CVE-2025-20243
Published: Aug 14, 2025
Modified: Aug 14, 2025
CVSS v3.1
8.6
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.
| Vendor | Product | Versions |
|---|---|---|
Cisco | Cisco Adaptive Security Appliance (ASA) Software | affected 9.12.3affected 9.8.3affected 9.12.1affected 9.8.1affected 9.12.2+215 more versions |
Cisco | Cisco Firepower Threat Defense Software | affected 6.2.3.14affected 6.4.0.1affected 6.2.3.7affected 6.2.3affected 6.4.0.2+89 more versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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