CVE-2026-20018
MEDIUM EPSS 33.7%
Published Mar 4, 20263mo ago · Modified Mar 5, 20263mo ago
5.9 CVSS 3.1
Published Mar 4, 2026 3mo ago
Last Modified Mar 5, 2026 3mo ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H Attack Vector Network
Attack Complexity High
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
33.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-27
References 1
- sec.cloudapps.cisco.com https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftdfmc-dir-trav-wERgjhWq
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.