Summary

• A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to log in to an affected device using a low-privileged account to access sensitive data within the impacted systems.

  This vulnerability is due to the presence of static user credentials for a low-privileged account. An attacker could exploit this vulnerability by using the account to log in to an affected system. A successful exploit could allow the attacker to log in to the affected system and access sensitive data as the low-privileged user.

  Note: If the FMC management interface does not have public internet access, the attack surface that is associated with this vulnerability is reduced.

  Cisco has assigned this security advisory a Security Impact Rating (SIR) of High rather than Medium as the score indicates. The reason is that this vulnerability can be used with other Cisco Secure FMC Software vulnerabilities to elevate privileges.

  Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

  This advisory is available at the following link:
  https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-static-cred-BET3Cjh

Affected Products

• Vulnerable Products

  This vulnerability affects Cisco Secure FMC Software, regardless of device configuration.

  For information about which Cisco software releases are vulnerable, see the Fixed Software section of this advisory.

  Products Confirmed Not Vulnerable

  Only products listed in the Vulnerable Products section of this advisory are known to be affected by this vulnerability.

  Cisco has confirmed that this vulnerability does not affect the following Cisco products:

  • Cloud-Delivered FMC (cdFMC)
  • Firewall Device Manager (FDM)
  • Secure Firewall Adaptive Security Appliance (ASA) Software
  • Secure Firewall Threat Defense (FTD) Software
  • Security Cloud Control (SCC), formerly Defense Orchestrator

Indicators of Compromise

• To determine if this vulnerability may have been exploited, use the zgrep "package_info.*license" messages* CLI command in expert mode. If the log message in the output includes /var/tmp/license.tmp, as shown in the following example, this vulnerability may have been exploited on the Cisco Secure FMC device:

  expert
  admin@firepower:~$ sudo su
  Password:
  Last login: Thu Jul 23 19:40:57 UTC 2026 on pts/2
  root@firepower:/home/admin#
  root@firepower:/home/admin# zgrep "package_info.*license" /var/log/messages* 
  Jul 23 16:16:33 firepower sudo:      www : PWD=/ ; USER=root ; COMMAND=/usr/local/sf/bin/package_info.pl /var/tmp/license.tmp --lsm 

  If exploitation is suspected, immediately contact the Cisco Technical Assistance Center (TAC) for assistance with recovery options. The hot fix files listed in this advisory are for preventing future exploitation only and may not address existing compromise. Follow all Cisco TAC guidance if indicators of compromise are present.

Workarounds

• There are no workarounds that address this vulnerability.

Fixed Software

• Cisco considers any workarounds and mitigations (if applicable) to be temporary solutions until an upgrade to a fixed software release is available. To fully remediate this vulnerability and avoid future exposure as described in this advisory, Cisco strongly recommends that customers upgrade to the fixed software indicated in this advisory.

  Cisco Secure FMC Hot Fixes

  Cisco has released the following hot fixes to address this vulnerability and to protect customers from future exploitation of this vulnerability. Customers can download the hot fixes from the Software Center on Cisco.com.

  Cisco Secure FMC Software Release	Hot Fix Name
  7.0	Cisco_Firepower_Mgmt_Center_Hotfix_GB-7.0.9.1-3.sh.REL.tar
  7.2	Cisco_Secure_FW_Mgmt_Center_Hotfix_HL-7.2.11.1-4.sh.REL.tar
  7.4	Cisco_Secure_FW_Mgmt_Center_Hotfix_HG-7.4.7.1-3.sh.REL.tar
  7.6	Cisco_Secure_FW_Mgmt_Center_Hotfix_CY-7.6.5.1-2.sh.REL.tar
  7.7	Cisco_Secure_FW_Mgmt_Center_Hotfix_AM-7.7.12.1-2.sh.REL.tar
  10.0	Cisco_Secure_FW_Mgmt_Center_Hotfix_P-10.0.1.1-2.sh.REL.tar

  For details about downloading and installing these hot fixes, see Cisco Firepower Hot Fix Release Notes.

  The Cisco Product Security Incident Response Team (PSIRT) validates only the affected and fixed release information that is documented in this advisory.

  Cisco Secure Firewall ASA, Secure FMC, and Secure FTD Software

  To help customers determine their exposure to vulnerabilities in Cisco Secure Firewall ASA, Secure FMC, and Secure FTD Software, Cisco provides the Cisco Software Checker. This tool identifies any Cisco security advisories that impact a specific software release and the earliest release that fixes the vulnerabilities that are described in each advisory (“First Fixed”). If applicable, the tool also returns the earliest release that fixes all the vulnerabilities that are described in all the advisories that the Software Checker identifies (“Combined First Fixed”).

  To use the tool, go to the Cisco Software Checker page and follow the instructions. Alternatively, use the following form to search for vulnerabilities that affect a specific software release. To use the form, follow these steps:

  1. Choose which advisories the tool will search-all advisories, only advisories with a Critical or High Security Impact Rating (SIR), or only this advisory.
  2. Choose the appropriate software.
  3. Choose the appropriate platform.
  4. Enter a release number-for example, 9.20.3.4 for Cisco Secure Firewall ASA Software or 7.4.2 for Cisco Secure FTD Software.
  5. Click Check.

  Only this advisory All Critical and High advisories All advisories Cisco ASA Software Cisco FMC Software Cisco FTD Software Any Platform 3000 Series Industrial Security Appliances (ISA) ASA 5500-X Series Firewalls ASA Service Module Adaptive Security Virtual Appliance (ASAv) Firepower 1000 Series Firepower 2100 Series Firepower 4100 Series Firepower 9000 Series Secure Firewall 1200 Series Secure Firewall 3100 Series Secure Firewall 4200 Series

  
  

  Additional Resources

  For help determining the best Cisco Secure Firewall ASA, Secure FMC, or Secure FTD Software release, see the following Recommended Releases documents. If a security advisory recommends a later release, Cisco recommends following the advisory guidance.

  Cisco Secure Firewall ASA Compatibility
  Cisco Secure Firewall ASA Upgrade Guide
  Cisco Secure Firewall Threat Defense Compatibility Guide

Exploitation and Public Announcements

• In July 2026, the Cisco PSIRT became aware of active exploitation of this vulnerability. Cisco strongly recommends that customers upgrade to a fixed software release to remediate this vulnerability.

Source

• Cisco would like to thank Jimi Sebree of Horizon3.ai for reporting this vulnerability.

  Cisco would also like to thank Andy Niu of TrendAI Research for reporting this vulnerability.

URL

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-static-cred-BET3Cjh

Revision History

• Version	Description	Section	Status	Date
  1.5	Added researcher.	Source	Final	2026-AUG-11
  1.4	Updated information about customer action with hot fixes.	Indicators of Compromise and Fixed Software	Final	2026-AUG-05
  1.3	Updated CLI command.	Indications of Compromise	Final	2026-AUG-03
  1.2	Updated to make it clear to contact TAC if compromise is suspected.	Indications of Compromise	Final	2026-JUL-31
  1.1	Updated the code example.	Indications of Compromise	Final	2026-JUL-31
  1.0	Initial public release.	-	Final	2026-JUL-29

  Show Less