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CVE-2026-20064

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CVE-2026-20064

Published: Mar 4, 2026

Modified: Mar 4, 2026

PUBLISHED

CVSS v3.1

6.5

MEDIUM

Description

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.

VendorProductVersions

Cisco

Cisco Secure Firewall Threat Defense (FTD) Software

affected
6.4.0
affected
6.4.0.1
affected
6.4.0.3
affected
6.4.0.2
affected
6.4.0.4

+70 more versions

Weaknesses (CWE)

CWE-476

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

References

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