Cisco Secure Firewall Management Center Software sftunnel Root Arbitrary Code Execution Vulnerability
A vulnerability in the sftunnel inter-device communication protocol of Cisco Secure Firewall Management Center (FMC) Software could allow an authenticated, remote attacker to execute arbitrary commands as root. This vulnerability exists because a registered sftunnel peer has incorrect permissions to write an arbitrary file to any location on the device. An attacker could exploit this vulnerability by hijacking the sftunnel communication connection or being a valid registered sftunnel peer and sending an sftunnel command to write a malicious file to the disk of an affected device. A successful exploit could allow the attacker to write a file to the device that is executed with root privileges. To exploit this vulnerability, the attacker must have valid user credentials on the affected device. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is part of a group of advisories. For a complete list of the advisories and links to them, see Cisco Advance Notification for Publication of September 16, 2026, Security Advisories ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-notice-jfxK98ZP"]. In addition, for further documentation of improvements and fixes in Cisco Secure Firewall products, see Cisco Secure Firewall Adaptive Security Appliance Software, Secure Firewall Threat Defense Software, and Secure Firewall Management Center Software Hardening Release: September 2026 ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-asaftdfmc-uvpPROhN"].
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-20324US | critical9.9OT elevated | — | ||
A vulnerability in the sftunnel inter-device communication protocol of Cisco Secure Firewall Management Center (FMC) Software could allow an authenticated, remote attacker to execu… | ||||
references
External citations — patches, advisories, analysis.
- Security Vulnerability Policyexternal
- Cisco Secure Firewall Management Center Software sftunnel Root Arbitrary Code Execution Vulnerabilityself
- Cisco Secure Firewall Adaptive Security Appliance Software, Secure Firewall Threat Defense Software, and Secure Firewall Management Center Software Hardening Release: September 2026external
- Cisco Advance Notification for Publication of September 16, 2026, Security Advisoriesexternal
- Cisco's Transition to a Risk-Based Vulnerability Disclosure Modelexternal
- Cisco Security Vulnerability Policyexternal
- Security Impact Rating (SIR)external
- considering software upgradesexternal
remediations (68)
- FixedCisco Secure Firewall Management Center (FMC) 10.0.0 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 10.0.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.0.0 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.0.0.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.0.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.0.1.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.0.2 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.0.2.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.0.3 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.0.4 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.0.5 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.0.6 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.0.6.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.0.6.2 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.0.6.3 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.0.7 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.0.8 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.0.8.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.0.9 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.0 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.0.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.10 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.10.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.10.2 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.11 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.2 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.3 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.3.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.4 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.4.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.5 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.5.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.5.2 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.6 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.7 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.8 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.8.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.2.9 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.3.0 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.3.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.3.1.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.3.1.2 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.4.0 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.4.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.4.1.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.4.2 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.4.2.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.4.2.2 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.4.2.3 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.4.2.4 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.4.3 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.4.4 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.4.5 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.4.6 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.4.7 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.6.0 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.6.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.6.2 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.6.2.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.6.3 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.6.4 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.6.5 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.7.0 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.7.10 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.7.10.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.7.11 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Management Center (FMC) 7.7.12 when installed on Cisco Secure Firewall Management Center (FMC) Appliances
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.
Free scan