Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Vulnerability
Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) contain a heap inspection vulnerability that could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition.
CVSS Score
9.8
CRITICAL
Published
11 Aug 2026 00:00
Modified
N/A
Vendor
Cisco
Product
Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD)
Source
CIRCL
Affected Versions
Fix
Vendor Patch / Mitigation Available
Weaknesses (CWE)
CWE-244
Affected Systems
Cisco
Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD)
Cisco
Secure Firewall Adaptive Security Appliance (ASA) And Secure Firewall Threat Defense (FTD)
Secure Firewall Management Center (FMC)
IOS
Unified Communications Manager
Catalyst SD-WAN Manager
Catalyst SD-WAN
Catalyst SD-WAN Manger
External Links
KEV Status
Known Exploited Vulnerability