CVE-2026-20106
Published: Mar 4, 2026
Modified: Mar 11, 2026
CVSS v3.1
5.3
Description
A vulnerability in the Remote Access SSL VPN, HTTP management and MUS functionality, of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to exhaust device memory resulting in a denial of service (DoS) condition requiring a manual reboot. This vulnerability is due to trusting user input without validation. An attacker could exploit this vulnerability by sending crafted packets to the Remote Access SSL VPN server. A successful exploit could allow the attacker to cause the device to stop responding, resulting in a DoS condition.
| Vendor | Product | Versions |
|---|---|---|
Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | affected 9.12.1affected 9.12.1.2affected 9.12.1.3affected 9.12.2affected 9.12.2.4+142 more versions |
Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | affected 6.4.0affected 6.4.0.1affected 6.4.0.3affected 6.4.0.2affected 6.4.0.4+70 more versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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