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CVE-2026-20323 Cisco Secure Firewall Management Center and Secure Firewall Threat Defense Software sftunnel Unauthorized Authentication Bypass Vulnerability

🗓️ 16 Sep 2026 20:15:35Reported by ciscoType 
cvelist
 cvelist
🔗 www.cve.org👁 11 Views

Unauthenticated adjacent sftunnel TLS certificate bypass in Cisco Secure FMC and FTD grants root.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cisco
Cisco
Cisco Secure Firewall Management Center and Secure Firewall Threat Defense Software sftunnel Vulnerabilities
16 Sep 202616:00
cisco
cve
CVE
CVE-2026-20323
16 Sep 202620:15
cve
euvd
EUVD
EUVD-2026-81139
16 Sep 202620:15
euvd
nvd
NVD
CVE-2026-20323
16 Sep 202621:17
nvd
[
  {
    "vendor": "Cisco",
    "product": "Cisco Secure Firewall Management Center (FMC)",
    "versions": [
      {
        "version": "7.0.0",
        "status": "affected"
      },
      {
        "version": "7.0.0.1",
        "status": "affected"
      },
      {
        "version": "7.0.1",
        "status": "affected"
      },
      {
        "version": "7.0.1.1",
        "status": "affected"
      },
      {
        "version": "7.0.2",
        "status": "affected"
      },
      {
        "version": "7.2.0",
        "status": "affected"
      },
      {
        "version": "7.0.2.1",
        "status": "affected"
      },
      {
        "version": "7.0.3",
        "status": "affected"
      },
      {
        "version": "7.2.0.1",
        "status": "affected"
      },
      {
        "version": "7.0.4",
        "status": "affected"
      },
      {
        "version": "7.2.1",
        "status": "affected"
      },
      {
        "version": "7.0.5",
        "status": "affected"
      },
      {
        "version": "7.3.0",
        "status": "affected"
      },
      {
        "version": "7.2.2",
        "status": "affected"
      },
      {
        "version": "7.3.1",
        "status": "affected"
      },
      {
        "version": "7.2.3",
        "status": "affected"
      },
      {
        "version": "7.2.3.1",
        "status": "affected"
      },
      {
        "version": "7.2.4",
        "status": "affected"
      },
      {
        "version": "7.0.6",
        "status": "affected"
      },
      {
        "version": "7.2.4.1",
        "status": "affected"
      },
      {
        "version": "7.2.5",
        "status": "affected"
      },
      {
        "version": "7.3.1.1",
        "status": "affected"
      },
      {
        "version": "7.4.0",
        "status": "affected"
      },
      {
        "version": "7.0.6.1",
        "status": "affected"
      },
      {
        "version": "7.2.5.1",
        "status": "affected"
      },
      {
        "version": "7.4.1",
        "status": "affected"
      },
      {
        "version": "7.2.6",
        "status": "affected"
      },
      {
        "version": "7.4.1.1",
        "status": "affected"
      },
      {
        "version": "7.0.6.2",
        "status": "affected"
      },
      {
        "version": "7.2.7",
        "status": "affected"
      },
      {
        "version": "7.2.5.2",
        "status": "affected"
      },
      {
        "version": "7.3.1.2",
        "status": "affected"
      },
      {
        "version": "7.2.8",
        "status": "affected"
      },
      {
        "version": "7.6.0",
        "status": "affected"
      },
      {
        "version": "7.4.2",
        "status": "affected"
      },
      {
        "version": "7.2.8.1",
        "status": "affected"
      },
      {
        "version": "7.0.6.3",
        "status": "affected"
      },
      {
        "version": "7.4.2.1",
        "status": "affected"
      },
      {
        "version": "7.2.9",
        "status": "affected"
      },
      {
        "version": "7.0.7",
        "status": "affected"
      },
      {
        "version": "7.7.0",
        "status": "affected"
      },
      {
        "version": "7.4.2.2",
        "status": "affected"
      },
      {
        "version": "7.2.10",
        "status": "affected"
      },
      {
        "version": "7.6.1",
        "status": "affected"
      },
      {
        "version": "7.4.2.3",
        "status": "affected"
      },
      {
        "version": "7.0.8",
        "status": "affected"
      },
      {
        "version": "7.6.2",
        "status": "affected"
      },
      {
        "version": "7.7.10",
        "status": "affected"
      },
      {
        "version": "7.2.10.1",
        "status": "affected"
      },
      {
        "version": "7.0.8.1",
        "status": "affected"
      },
      {
        "version": "7.6.2.1",
        "status": "affected"
      },
      {
        "version": "7.2.10.2",
        "status": "affected"
      },
      {
        "version": "7.7.10.1",
        "status": "affected"
      },
      {
        "version": "7.4.2.4",
        "status": "affected"
      },
      {
        "version": "7.4.3",
        "status": "affected"
      },
      {
        "version": "7.6.3",
        "status": "affected"
      },
      {
        "version": "7.7.11",
        "status": "affected"
      },
      {
        "version": "7.6.4",
        "status": "affected"
      },
      {
        "version": "10.0.0",
        "status": "affected"
      },
      {
        "version": "7.4.4",
        "status": "affected"
      },
      {
        "version": "7.4.5",
        "status": "affected"
      },
      {
        "version": "7.0.9",
        "status": "affected"
      },
      {
        "version": "7.2.11",
        "status": "affected"
      },
      {
        "version": "7.7.12",
        "status": "affected"
      },
      {
        "version": "7.6.5",
        "status": "affected"
      },
      {
        "version": "7.4.6",
        "status": "affected"
      },
      {
        "version": "10.0.1",
        "status": "affected"
      },
      {
        "version": "7.4.7",
        "status": "affected"
      },
      {
        "version": "7.0.10",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Cisco",
    "product": "Cisco Secure Firewall Threat Defense (FTD) Software",
    "versions": [
      {
        "version": "7.0.0",
        "status": "affected"
      },
      {
        "version": "7.0.0.1",
        "status": "affected"
      },
      {
        "version": "7.0.1",
        "status": "affected"
      },
      {
        "version": "7.0.1.1",
        "status": "affected"
      },
      {
        "version": "7.0.2",
        "status": "affected"
      },
      {
        "version": "7.2.0",
        "status": "affected"
      },
      {
        "version": "7.0.2.1",
        "status": "affected"
      },
      {
        "version": "7.0.3",
        "status": "affected"
      },
      {
        "version": "7.2.0.1",
        "status": "affected"
      },
      {
        "version": "7.0.4",
        "status": "affected"
      },
      {
        "version": "7.2.1",
        "status": "affected"
      },
      {
        "version": "7.0.5",
        "status": "affected"
      },
      {
        "version": "7.3.0",
        "status": "affected"
      },
      {
        "version": "7.2.2",
        "status": "affected"
      },
      {
        "version": "7.2.3",
        "status": "affected"
      },
      {
        "version": "7.3.1",
        "status": "affected"
      },
      {
        "version": "7.2.4",
        "status": "affected"
      },
      {
        "version": "7.0.6",
        "status": "affected"
      },
      {
        "version": "7.2.5",
        "status": "affected"
      },
      {
        "version": "7.2.4.1",
        "status": "affected"
      },
      {
        "version": "7.3.1.1",
        "status": "affected"
      },
      {
        "version": "7.4.0",
        "status": "affected"
      },
      {
        "version": "7.0.6.1",
        "status": "affected"
      },
      {
        "version": "7.2.5.1",
        "status": "affected"
      },
      {
        "version": "7.4.1",
        "status": "affected"
      },
      {
        "version": "7.2.6",
        "status": "affected"
      },
      {
        "version": "7.0.6.2",
        "status": "affected"
      },
      {
        "version": "7.4.1.1",
        "status": "affected"
      },
      {
        "version": "7.2.7",
        "status": "affected"
      },
      {
        "version": "7.2.5.2",
        "status": "affected"
      },
      {
        "version": "7.3.1.2",
        "status": "affected"
      },
      {
        "version": "7.2.8",
        "status": "affected"
      },
      {
        "version": "7.6.0",
        "status": "affected"
      },
      {
        "version": "7.4.2",
        "status": "affected"
      },
      {
        "version": "7.2.8.1",
        "status": "affected"
      },
      {
        "version": "7.0.6.3",
        "status": "affected"
      },
      {
        "version": "7.4.2.1",
        "status": "affected"
      },
      {
        "version": "7.2.9",
        "status": "affected"
      },
      {
        "version": "7.0.7",
        "status": "affected"
      },
      {
        "version": "7.7.0",
        "status": "affected"
      },
      {
        "version": "7.4.2.2",
        "status": "affected"
      },
      {
        "version": "7.2.10",
        "status": "affected"
      },
      {
        "version": "7.6.1",
        "status": "affected"
      },
      {
        "version": "7.4.2.3",
        "status": "affected"
      },
      {
        "version": "7.0.8",
        "status": "affected"
      },
      {
        "version": "7.6.2",
        "status": "affected"
      },
      {
        "version": "7.7.10",
        "status": "affected"
      },
      {
        "version": "7.7.11",
        "status": "affected"
      },
      {
        "version": "7.0.8.1",
        "status": "affected"
      },
      {
        "version": "7.6.2.1",
        "status": "affected"
      },
      {
        "version": "7.7.10.1",
        "status": "affected"
      },
      {
        "version": "7.4.2.4",
        "status": "affected"
      },
      {
        "version": "7.2.10.2",
        "status": "affected"
      },
      {
        "version": "7.4.3",
        "status": "affected"
      },
      {
        "version": "7.6.4",
        "status": "affected"
      },
      {
        "version": "10.0.0",
        "status": "affected"
      },
      {
        "version": "7.4.4",
        "status": "affected"
      },
      {
        "version": "7.0.9",
        "status": "affected"
      },
      {
        "version": "7.2.11",
        "status": "affected"
      },
      {
        "version": "7.4.7",
        "status": "affected"
      },
      {
        "version": "7.0.10",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  }
]

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