CVE-2026-20018

MEDIUM EPSS 33.7%
Published Mar 4, 20263mo ago · Modified Mar 5, 20263mo ago
5.9 CVSS 3.1
Medium
Find Similar
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
5.9
Exploitability
0.7
Impact
5.2
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.