PT-2026-23043 · Cisco · Cisco Secure Firewall Threat Defense (Ftd)

Katherine Askew · Published 2026-03-04 · Updated 2026-03-04 · CVE-2026-20064

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco Secure Firewall Threat Defense (FTD) Software (affected versions not specified)

Description A flaw exists in Cisco Secure Firewall Threat Defense (FTD) Software that may allow a local attacker with authentication to trigger an unexpected device reload, leading to a denial of service (DoS) condition. The issue stems from insufficient validation of user-provided input. An attacker with limited privileges can exploit this by executing specially crafted commands through the command-line interface (CLI). Successful exploitation results in a DoS condition.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2026-20064

Affected Products

Cisco Secure Firewall Threat Defense (Ftd)

References · 4

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-cmd-inj-mTzGZexf · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-20064 · Security Note
• https://t.me/CVEtracker/46352 · Telegram Post
• https://twitter.com/CVEnew/status/2029272771516117416 · Twitter Post