CVE-2024-20339
Detail
Description
A vulnerability in the TLS processing feature of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to an issue that occurs when TLS traffic is processed. An attacker could exploit this vulnerability by sending certain TLS traffic over IPv4 through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition and impacting traffic to and through the affected device.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Weakness Enumeration
CWE-ID
CWE Name
Source
CWE-476
NULL Pointer Dereference
Cisco Systems, Inc.
Change History
84 change records found show changes
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
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CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.3:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.3:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
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CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.4:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.4:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.5:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.5:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.11:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.11:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
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CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.9:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.9:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
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CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.13:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.13:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.14:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.14:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.17:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.17:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.18:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.18:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.6.3:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.6.3:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.6.5:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.6.5:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.6.5.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.6.5.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.6.5.2:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.6.5.2:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.2:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.2:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.4:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.4:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.5:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.5:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.6:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.6:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.7:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.7:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.12:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.12:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.14:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.14:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.15:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.15:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.7.0:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.7.0:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.7.0.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.7.0.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.7.0.2:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.7.0.2:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.7.0.3:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.7.0.3:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.0.0:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.0:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.0.0.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.0.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.0.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.0.2.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.2.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.0.3:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.3:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.0.4:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.4:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.0.6:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.6:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.1.0:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.1.0:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.1.0.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.1.0.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.1.0.3:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.1.0.3:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.2.0:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.0:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.2.2:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.2:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.2.4.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.4.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.2.5:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.5:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.3.1.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.3.1.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.3.1.2:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.3.1.2:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.6.7.2:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.6.7.2:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.2:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.2:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.6:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.6:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.7:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.7:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.8:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.8:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.10:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.10:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.12:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.12:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.15:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.15:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.16:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.16:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.6.0:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.6.0:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.6.0.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.6.0.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.6.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.6.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.6.4:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.6.4:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.6.7:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.6.7:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.6.7.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.6.7.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.3:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.3:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.8:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.8:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.9:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.9:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.10:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.10:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.11:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.11:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.13:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.13:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.16:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.16:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.17:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.17:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.0.1.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.1.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.0.2:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.2:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.0.5:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.5:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.0.6.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.6.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.2.0.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.0.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.2.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.2.3:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.3:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.2.4:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.4:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.2.5.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.5.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.3.0:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.3.0:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.3.1:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.3.1:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/11/2026 3:40:47 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:7.2.5.2:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.5.2:*:*:*:*:*:*:*
CVE Modified by CISA-ADP
6/17/2026 3:06:45 AM
Action
Type
Old Value
New Value
Added
Affected
[{"vendor":"cisco","product":"firepower_threat_defense_software","defaultStatus":"unknown","cpes":["cpe:2.3:a:cisco:firepower_threat_defense_software:*:*:*:*:*:*:*:*"],"versions":[{"version":"6.2.3","lessThanOrEqual":"6.2.3.18","versionType":"custom","status":"affected"},{"version":"6.4.0","lessThanOrEqual":"6.4.0.17","versionType":"custom","status":"affected"},{"version":"6.6.0","lessThanOrEqual":"6.6.7.2","versionType":"custom","status":"affected"},{"version":"6.7.0","lessThanOrEqual":"6.7.0.3","versionType":"custom","status":"affected"},{"version":"7.0.0","lessThanOrEqual":"7.0.6.1","versionType":"custom","status":"affected"},{"version":"7.1.0","lessThanOrEqual":"7.1.0.3","versionType":"custom","status":"affected"},{"version":"7.2.0","lessThanOrEqual":"7.2.5.2","versionType":"custom","status":"affected"},{"version":"7.3.0","lessThanOrEqual":"7.3.1.2","versionType":"custom","status":"affected"}]}]
Added
SSVC
{"timestamp":"2024-10-23T18:42:47.061307Z","id":"CVE-2024-20339","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}
CVE Modified by Cisco Systems, Inc.
6/17/2026 3:06:45 AM
Action
Type
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New Value
Added
Affected
Record truncated, showing 2048 of 3438 characters.
View Entire Change Record
[{"vendor":"Cisco","product":"Cisco Firepower Threat Defense Software","defaultStatus":"unknown","versions":[{"version":"6.2.3","status":"affected"},{"version":"6.2.3.9","status":"affected"},{"version":"6.2.3.1","status":"affected"},{"version":"6.2.3.2","status":"affected"},{"version":"6.2.3.10","status":"affected"},{"version":"6.4.0","status":"affected"},{"version":"6.4.0.3","status":"affected"},{"version":"6.4.0.4","status":"affected"},{"version":"6.2.3.15","status":"affected"},{"version":"6.2.3.6","status":"affected"},{"version":"6.2.3.7","status":"affected"},{"version":"6.2.3.12","status":"affected"},{"version":"6.2.3.3","status":"affected"},{"version":"6.2.3.11","status":"affected"},{"version":"6.4.0.6","status":"affected"},{"version":"6.2.3.13","status":"affected"},{"version":"6.2.3.8","status":"affected"},{"version":"6.2.3.4","status":"affected"},{"version":"6.4.0.1","status":"affected"},{"version":"6.2.3.5","status":"affected"},{"version":"6.4.0.5","status":"affected"},{"version":"6.2.3.14","status":"affected"},{"version":"6.4.0.2","status":"affected"},{"version":"6.4.0.8","status":"affected"},{"version":"6.4.0.7","status":"affected"},{"version":"6.6.0","status":"affected"},{"version":"6.4.0.9","status":"affected"},{"version":"6.2.3.16","status":"affected"},{"version":"6.6.0.1","status":"affected"},{"version":"6.6.1","status":"affected"},{"version":"6.4.0.10","status":"affected"},{"version":"6.7.0","status":"affected"},{"version":"6.4.0.11","status":"affected"},{"version":"6.6.3","status":"affected"},{"version":"6.7.0.1","status":"affected"},{"version":"6.6.4","status":"affected"},{"version":"6.4.0.12","status":"affected"},{"version":"6.7.0.2","status":"affected"},{"version":"7.0.0","status":"affected"},{"version":"6.2.3.17","status":"affected"},{"version":"7.0.0.1","status":"affected"},{"version":"6.6.5","status":"affected"},{"version":"7.0.1","status":"affected"},{"version":"7.1.0","status":"affected"},{"version":"6.4.0.13","status":"affected"},{"version":"6.6.5.1","status":"affected"},{"version":"6.2.3
Initial Analysis by NIST
8/08/2025 12:10:03 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Added
CPE Configuration
Record truncated, showing 2048 of 6609 characters.
View Entire Change Record
OR
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.1:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.2:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.3:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.4:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.5:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.9:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.10:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.15:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.6:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.7:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.12:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.11:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.13:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.8:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.14:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.16:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3.17:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.3:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.4:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.6:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.1:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0.5:*:*:*:*:*:*:*
*cpe:2.3:a:cisco:firepower_threat_defen
Added
Reference Type
Cisco Systems, Inc.: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-M446vbEO Types: Broken Link
Added
Reference Type
Cisco Systems, Inc.: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-tls-dos-QXYE5Ufy Types: Vendor Advisory
Added
Reference Type
Cisco Systems, Inc.: https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75300 Types: Vendor Advisory
New CVE Received from Cisco Systems, Inc.
10/23/2024 1:15:18 PM
Action
Type
Old Value
New Value
Added
Description
A vulnerability in the TLS processing feature of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to an issue that occurs when TLS traffic is processed. An attacker could exploit this vulnerability by sending certain TLS traffic over IPv4 through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition and impacting traffic to and through the affected device.
Added
CVSS V3.1
Cisco Systems, Inc. AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Added
CWE
Cisco Systems, Inc. CWE-476
Added
Reference
Cisco Systems, Inc. https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-M446vbEO [No types assigned]
Added
Reference
Cisco Systems, Inc. https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-tls-dos-QXYE5Ufy [No types assigned]
Added
Reference
Cisco Systems, Inc. https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75300 [No types assigned]
Quick Info
CVE Dictionary Entry: CVE-2024-20339 NVD
Published Date: 10/23/2024 NVD
Last Modified: 08/11/2026
Source: Cisco Systems, Inc.