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CVE-2026-20349
8.6 HIGH
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Changed (C)
- Confidentiality (C): None (N)
- Integrity (I): None (N)
- Availability (A): High (H)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): None (N)
- Modified Scope (MS): Changed (C)
- Modified Integrity (MI): None (N)
- Modified Availability (MA): High (H)
Activity log
- Created & dismissed (no matching packages found) suggestion
Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Denial of Service Vulnerability
A vulnerability in the Remote Access SSL VPN service for Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient error checking when processing HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to the Remote Access SSL VPN service on an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
References
Affected products
Cisco Secure Firewall Threat Defense (FTD) Software
- ==7.6.2
- ==7.2.9
- ==7.2.8.1
- ==10.0.2
- ==7.0.9
- ==7.2.0
- ==7.2.3
- ==7.7.0
- ==7.7.11
- ==7.6.4
- ==7.0.2.1
- ==7.2.5.2
- ==7.6.2.1
- ==7.0.2
- ==7.6.0
- ==7.4.2.4
- ==7.2.0.1
- ==7.2.10.2
- ==7.4.2.1
- ==7.0.6
- ==7.4.8
- ==7.3.1
- ==7.0.1
- ==7.2.1
- ==7.2.4.1
- ==7.2.10
- ==7.4.2
- ==7.2.8
- ==7.4.3
- ==7.0.0.1
- ==7.2.5
- ==7.4.2.2
- ==7.0.0
- ==10.0.0
- ==7.2.4
- ==7.2.2
- ==7.0.6.1
- ==7.0.6.2
- ==7.0.7
- ==7.0.8
- ==7.3.0
- ==7.6.1
- ==7.2.11
- ==7.4.0
- ==7.0.3
- ==7.4.4
- ==7.7.10.1
- ==7.4.1
- ==7.4.2.3
- ==7.0.5
- ==7.0.6.3
- ==7.3.1.2
- ==7.7.10
- ==7.0.8.1
- ==7.2.12
- ==7.2.5.1
- ==7.0.1.1
- ==7.0.4
- ==7.2.6
- ==7.4.1.1
- ==7.7.13
- ==7.3.1.1
- ==7.2.7
- ==7.4.7
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software
- ==9.16.1
- ==9.22.2.4
- ==9.23.1.195
- ==9.22.1.6
- ==9.22.2.32
- ==9.16.4.76
- ==9.16.4.61
- ==9.22.2.20
- ==9.20.3
- ==9.20.4.14
- ==9.18.3.53
- ==9.16.3.19
- ==9.20.4.30
- ==9.18.4.34
- ==9.20.3.4
- ==9.16.4.57
- ==9.18.4.29
- ==9.16.4.89
- ==9.18.4.40
- ==9.16.4.55
- ==9.18.2.8
- ==9.24.1.9
- ==9.16.4.84
- ==9.20.3.16
- ==9.18.4.135
- ==9.23.1.32
- ==9.20.1
- ==9.19.1.24
- ==9.22.2.14
- ==9.23.1.19
- ==9.18.4.90
- ==9.18.2.5
- ==9.18.4.76
- ==9.22.3
- ==9.20.4.28
- ==9.23.1.26
- ==9.16.4.39
- ==9.18.4.68
- ==9.22.2
- ==9.18.2
- ==9.20.2.22
- ==9.24.1.5
- ==9.16.2.14
- ==9.18.4.5
- ==9.18.4.47
- ==9.16.3.14
- ==9.16.2.13
- ==9.19.1.22
- ==9.16.3.23
- ==9.16.4.14
- ==9.16.3.3
- ==9.19.1.38
- ==9.18.4.57
- ==9.20.4.10
- ==9.18.4.24
- ==9.18.1
- ==9.20.1.5
- ==9.19.1.18
- ==9.18.1.3
- ==9.20.4.34
- ==9.18.3.55
- ==9.16.4
- ==9.16.3.15
- ==9.16.4.71
- ==9.18.4.82
- ==9.16.4.38
- ==9.18.4.8
- ==9.16.4.70
- ==9.16.4.82
- ==9.20.2.21
- ==9.18.2.7
- ==9.19.1.42
- ==9.20.2.10
- ==9.20.3.9
- ==9.23.1.7
- ==9.22.2.9
- ==9.18.4.71
- ==9.20.4.22
- ==9.19.1.28
- ==9.20.4.46
- ==9.20.4.7
- ==9.18.4.50
- ==9.22.2.13
- ==9.22.1.2
- ==9.16.4.9
- ==9.16.2.11
- ==9.16.4.42
- ==9.16.2.7
- ==9.20.3.13
- ==9.23.1.13
- ==9.16.4.27
- ==9.24.1.11
- ==9.24.1.155
- ==9.18.3.56
- ==9.23.1.22
- ==9.20.3.20
- ==9.19.1.5
- ==9.16.4.48
- ==9.16.2.3
- ==9.16.4.92
- ==9.16.1.28
- ==9.19.1.31
- ==9.16.4.19
- ==9.16.4.62
- ==9.20.2
- ==9.20.3.10
- ==9.19.1.9
- ==9.16.4.67
- ==9.19.1.37
- ==9.23.1.3
- ==9.20.3.7
- ==9.16.3
- ==9.19.1.12
- ==9.18.4.66
- ==9.19.1
- ==9.22.3.5
- ==9.23.1
- ==9.18.4
- ==9.20.4
- ==9.20.4.19
- ==9.22.1.3
- ==9.18.4.67
- ==9.16.2
- ==9.18.4.22
- ==9.18.3
- ==9.16.4.85
- ==9.18.3.46
- ==9.18.4.53
- ==9.24.1
- ==9.19.1.27
- ==9.18.4.52
- ==9.22.1.1
- ==9.18.3.39