cisco-sa-fmc-mulivulns-4PsnFwvxCriticalCVSS 9.1

Cisco Secure Firewall Management Center Software Vulnerabilities

Published
September 16, 2026
Last Modified
September 16, 2026

🔗 CVE IDs covered (5)

CVE-2026-20340 →CVE-2026-20341 →CVE-2026-20342 →CVE-2026-20343 →CVE-2026-20344 →

📋 Description

Multiple vulnerabilities in Cisco Secure Firewall Management Center (FMC) Software could allow a remote attacker to gain root access, download sensitive files, perform a SQL injection attack, or cause a denial of service (DoS) condition.

For more information about these vulnerabilities, see the Details ["#details"] section of this advisory.

Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

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"].

CVE-2026-20340 — Cisco Secure Firewall Management Center Software Deserialization Arbitrary Root Command Execution Vulnerability (CVSS 3.1 8.8, CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) CVE-2026-20341 — Cisco Secure Firewall Management Center Software sftunnel Deserialization Root Command Execution Vulnerability (CVSS 3.1 9.1, CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H) CVE-2026-20342 — Cisco Secure Firewall Management Center Software Low Privileged Arbitrary File Download Vulnerability (CVSS 3.1 7.7, CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N) CVE-2026-20343 — Cisco Secure Firewall Management Center Software Information Disclosure and Disk Denial of Service Vulnerability (CVSS 3.1 7.5, CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVE-2026-20344 — Cisco Secure Firewall Management Center Software SQL Injection Vulnerability (CVSS 3.1 8.8, CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

🎯 Affected products70

  • Cisco Secure Firewall Management Center (FMC)
  • Cisco Secure Firewall Management Center (FMC) Appliances
  • Cisco Secure Firewall Management Center (FMC) 10.0.0
  • Cisco Secure Firewall Management Center (FMC) 10.0.1
  • Cisco Secure Firewall Management Center (FMC) 7.0.0
  • Cisco Secure Firewall Management Center (FMC) 7.0.0.1
  • Cisco Secure Firewall Management Center (FMC) 7.0.1
  • Cisco Secure Firewall Management Center (FMC) 7.0.1.1
  • Cisco Secure Firewall Management Center (FMC) 7.0.2
  • Cisco Secure Firewall Management Center (FMC) 7.0.2.1
  • Cisco Secure Firewall Management Center (FMC) 7.0.3
  • Cisco Secure Firewall Management Center (FMC) 7.0.4
  • Cisco Secure Firewall Management Center (FMC) 7.0.5
  • Cisco Secure Firewall Management Center (FMC) 7.0.6
  • Cisco Secure Firewall Management Center (FMC) 7.0.6.1
  • Cisco Secure Firewall Management Center (FMC) 7.0.6.2
  • Cisco Secure Firewall Management Center (FMC) 7.0.6.3
  • Cisco Secure Firewall Management Center (FMC) 7.0.7
  • Cisco Secure Firewall Management Center (FMC) 7.0.8
  • Cisco Secure Firewall Management Center (FMC) 7.0.8.1
  • Cisco Secure Firewall Management Center (FMC) 7.0.9
  • Cisco Secure Firewall Management Center (FMC) 7.2.0
  • Cisco Secure Firewall Management Center (FMC) 7.2.0.1
  • Cisco Secure Firewall Management Center (FMC) 7.2.1
  • Cisco Secure Firewall Management Center (FMC) 7.2.10
  • Cisco Secure Firewall Management Center (FMC) 7.2.10.1
  • Cisco Secure Firewall Management Center (FMC) 7.2.10.2
  • Cisco Secure Firewall Management Center (FMC) 7.2.11
  • Cisco Secure Firewall Management Center (FMC) 7.2.2
  • Cisco Secure Firewall Management Center (FMC) 7.2.3
  • +40 more not shown

✅ Remediation

Cisco has released software updates that address this vulnerability. https://software.cisco.com Workarounds: There are no workarounds that address these vulnerabilities.

🔗 References (12)