Secure Firewall ASA and FTD
CVE-2025-20243: Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Denial of Service Vulnerability
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.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityHIGHCVSS 3.1 8.6
EPSS0.61%Chance of exploitation in 30 days
Public exploitNot tracked
FixNot yet
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.8 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.23 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.22 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.17 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.19 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.22 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.22 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.20 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.22 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | See the advisory |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.6 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 6.6 | See the advisory |
| Cisco Firepower Threat Defense Software 6.6 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.6 | See the advisory |
| Cisco Firepower Threat Defense Software 6.6 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 7.0 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 7.0 | See the advisory |
| Cisco Firepower Threat Defense Software 6.6 | See the advisory |
| Cisco Firepower Threat Defense Software 7.0 | See the advisory |
| Cisco Firepower Threat Defense Software 7.1 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.6 | See the advisory |
| Cisco Firepower Threat Defense Software 6.2 | See the advisory |
| Cisco Firepower Threat Defense Software 7.0 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 7.1 | See the advisory |
| Cisco Firepower Threat Defense Software 6.6 | See the advisory |
| Cisco Firepower Threat Defense Software 7.0 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 7.2 | See the advisory |
| Cisco Firepower Threat Defense Software 7.0 | See the advisory |
| Cisco Firepower Threat Defense Software 7.0 | See the advisory |
| Cisco Firepower Threat Defense Software 6.6 | See the advisory |
| Cisco Firepower Threat Defense Software 7.1 | See the advisory |
| Cisco Firepower Threat Defense Software 7.2 | See the advisory |
| Cisco Firepower Threat Defense Software 7.0 | See the advisory |
| Cisco Firepower Threat Defense Software 7.2 | See the advisory |
| Cisco Firepower Threat Defense Software 7.0 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 7.3 | See the advisory |
| Cisco Firepower Threat Defense Software 7.2 | See the advisory |
| Cisco Firepower Threat Defense Software 7.2 | See the advisory |
| Cisco Firepower Threat Defense Software 6.6 | See the advisory |
| Cisco Firepower Threat Defense Software 7.3 | See the advisory |
| Cisco Firepower Threat Defense Software 7.1 | See the advisory |
| Cisco Firepower Threat Defense Software 7.2 | See the advisory |
| Cisco Firepower Threat Defense Software 7.0 | See the advisory |
| Cisco Firepower Threat Defense Software 7.2 | See the advisory |
| Cisco Firepower Threat Defense Software 7.2 | See the advisory |
| Cisco Firepower Threat Defense Software 7.3 | See the advisory |
| Cisco Firepower Threat Defense Software 7.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 7.0 | See the advisory |
| Cisco Firepower Threat Defense Software 7.2 | See the advisory |
| Cisco Firepower Threat Defense Software 7.4 | See the advisory |
| Cisco Firepower Threat Defense Software 7.2 | See the advisory |
| Cisco Firepower Threat Defense Software 7.0 | See the advisory |
| Cisco Firepower Threat Defense Software 7.4 | See the advisory |
| Cisco Firepower Threat Defense Software 6.6 | See the advisory |
| Cisco Firepower Threat Defense Software 6.4 | See the advisory |
| Cisco Firepower Threat Defense Software 7.2 | See the advisory |
| Cisco Firepower Threat Defense Software 7.2 | See the advisory |
| Cisco Firepower Threat Defense Software 7.3 | See the advisory |
| Cisco Firepower Threat Defense Software 7.2 | See the advisory |
| Cisco Firepower Threat Defense Software 7.6 | See the advisory |
| Cisco Firepower Threat Defense Software 7.4 | See the advisory |
| Cisco Firepower Threat Defense Software 7.2 | See the advisory |
| Cisco Firepower Threat Defense Software 7.0 | See the advisory |
| Cisco Firepower Threat Defense Software 7.4 | See the advisory |
| Cisco Firepower Threat Defense Software 7.2 | See the advisory |
| Cisco Firepower Threat Defense Software 7.0 | See the advisory |
| Cisco Firepower Threat Defense Software 7.7 | See the advisory |
| Cisco Firepower Threat Defense Software 7.4 | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
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.
Exploitation
The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 11 Oct 2026.