Command Injection Vulnerability in Cisco Secure FTD Software
CVE-2026-20017

6MEDIUM

Key Information:

Vendor

Cisco
Status
Cisco Secure Firewall Threat Defense (ftd) Software
Vendor
CVE Published:
4 March 2026

Badges

👾 Exploit Exists

What is CVE-2026-20017?

A significant vulnerability in the command-line interface (CLI) of Cisco Secure FTD Software allows an authenticated local attacker with administrative credentials to inject arbitrary commands into the system. This issue arises from inadequate validation of input parameters provided by users, enabling the submission of maliciously crafted commands. Successful exploitation grants the attacker root access to the underlying operating system, posing a severe risk to device integrity and security.

Affected Version(s)

Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.1

Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.2

Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.5

References

https://sec.cloudapps.cisco.com/security/center/content/C...

CVSS V3.1

Score:
6
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.