cisco-sa-ftd-tls1.3-dos-dLxwFWgFHighCVSS 8.6

Cisco Secure Firewall Threat Defense Software TLS 1.3 Denial of Service Vulnerability

Published
September 16, 2026
Last Modified
September 16, 2026

🔗 CVE IDs covered (1)

CVE-2026-20135 →

📋 Description

🎯 Affected products58

  • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.0
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.0.1
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.1
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.1.1
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.2
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.2.1
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.3
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.4
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.5
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.6
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.6.1
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.6.2
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.6.3
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.7
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.8
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.8.1
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.9
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.2.0
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.2.0.1
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.2.1
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.2.2
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.2.3
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.2.4
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.2.4.1
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.2.5
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.2.5.1
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.2.6
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.2.7
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.2.5.2
  • Cisco Secure Firewall Threat Defense (FTD) Software 7.2.8
  • +28 more not shown

🔗 References (2)