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CVE-2026-20016

Published: Mar 4, 2026Updated: Jun 5, 2026 Sources: CVE List NVDCWE-88
NVD MITRE
6.0CVSSMEDIUM
EPSS Score
0.2%
Top 92.2%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available

Description

A vulnerability in the Cisco FXOS Software CLI feature for Cisco Secure Firewall ASA Software and Secure FTD Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system with root-level privileges. To exploit this vulnerability, the attacker must have valid administrative credentials on an affected device. This vulnerability is due to insufficient input validation of user-supplied command arguments. An attacker could exploit this vulnerability by submitting crafted input for specific CLI commands. A successful exploit could allow the attacker to execute commands on the underlying operating system with root-level privileges.

CVSS Vector Breakdown

AV:LAC:LPR:HUI:NS:UC:HI:HA:N
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-88

Affected Products

adaptive security appliance softwarecisco
On-premNetwork Device
Networking Infrastructure / firewall
firepower threat defense softwarecisco
On-premSecurity Product
Security Products / vuln-mgmt-scanner
Cisco Secure Firewall Threat Defense (FTD) SoftwareCisco
On-premSecurity Product
Security Products
ciscocommercialUSNetworking Infrastructureaka cisco systems, cisco systems inc.

Attack Graph

Products CVE Techniques Tactics

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Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-cmd-inj-mTzGZexf
sec.cloudapps.cisco.com

Timeline

Published
Mar 4, 2026
Last Updated
Jun 5, 2026

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