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CVE-2026-20064

MEDIUM CVSS 3.1: 6.5 EPSS 0.03%
Updated Mar 05, 2026
Cisco
Parameter Value
CVSS 6.5 (MEDIUM)
Type CWE-476 (NULL Pointer Dereference)
Vendor Cisco
Public PoC No

A vulnerability in of Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, local attacker to cause the device to unexpectedly reload, causing a denial of service (DoS) condition. This vulnerability is due to improper validation of user-supplied input. An attacker with a low-privileged account could exploit this vulnerability by using crafted commands at the CLI prompt.

A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v3.1