CVE-2026-20018
Published: Mar 4, 2026
Modified: Mar 4, 2026
CVSS v3.1
5.9
Description
A vulnerability in the sftunnel functionality of Cisco Secure Firewall Management Center (FMC) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, remote attacker with administrative privileges to write arbitrary files as root on the underlying operating system. This vulnerability is due to insufficient validation of the directory path during file synchronization. An attacker could exploit this vulnerability by crafting a directory path outside of the expected file location. A successful exploit could allow the attacker to create or replace any file on the underlying operating system.
| Vendor | Product | Versions |
|---|---|---|
Cisco | Cisco Secure Firewall Management Center (FMC) | affected 7.0.0affected 7.0.0.1affected 7.0.1affected 7.1.0affected 7.0.1.1+54 more versions |
Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | affected 7.0.0affected 7.0.0.1affected 7.0.1affected 7.1.0affected 7.0.1.1+52 more versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
Security Training
Train your team to recognize and prevent security threats with our comprehensive security awareness program.
Start TrainingVulnerability Scanning
Discover vulnerabilities in your applications and infrastructure before attackers do.
Scan Now