CVE-2024-20407

A vulnerability in the interaction between the TCP Intercept feature and the Snort 3 detection engine on Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured policies on an affected system. Devices that are configured with Snort 2 are not affected by this vulnerability. 

 This vulnerability is due to a logic error when handling embryonic (half-open) TCP connections. An attacker could exploit this vulnerability by sending a crafted traffic pattern through an affected device. A successful exploit could allow unintended traffic to enter the network protected by the affected device.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.8 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
ciscoCNA
5.8 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 31%
VendorProductVersion
ciscofirepower_threat_defense
6.2.3
ciscofirepower_threat_defense
6.2.3.1
ciscofirepower_threat_defense
6.2.3.2
ciscofirepower_threat_defense
6.2.3.3
ciscofirepower_threat_defense
6.2.3.4
ciscofirepower_threat_defense
6.2.3.5
ciscofirepower_threat_defense
6.2.3.6
ciscofirepower_threat_defense
6.2.3.7
ciscofirepower_threat_defense
6.2.3.8
ciscofirepower_threat_defense
6.2.3.9
ciscofirepower_threat_defense
6.2.3.10
ciscofirepower_threat_defense
6.2.3.11
ciscofirepower_threat_defense
6.2.3.12
ciscofirepower_threat_defense
6.2.3.13
ciscofirepower_threat_defense
6.2.3.14
ciscofirepower_threat_defense
6.2.3.15
ciscofirepower_threat_defense
6.2.3.16
ciscofirepower_threat_defense
6.2.3.17
ciscofirepower_threat_defense
6.2.3.18
ciscofirepower_threat_defense
6.4.0
ciscofirepower_threat_defense
6.4.0.1
ciscofirepower_threat_defense
6.4.0.2
ciscofirepower_threat_defense
6.4.0.3
ciscofirepower_threat_defense
6.4.0.4
ciscofirepower_threat_defense
6.4.0.5
ciscofirepower_threat_defense
6.4.0.6
ciscofirepower_threat_defense
6.4.0.7
ciscofirepower_threat_defense
6.4.0.8
ciscofirepower_threat_defense
6.4.0.9
ciscofirepower_threat_defense
6.4.0.10
ciscofirepower_threat_defense
6.4.0.11
ciscofirepower_threat_defense
6.4.0.12
ciscofirepower_threat_defense
6.4.0.13
ciscofirepower_threat_defense
6.4.0.14
ciscofirepower_threat_defense
6.4.0.15
ciscofirepower_threat_defense
6.4.0.16
ciscofirepower_threat_defense
6.4.0.17
ciscofirepower_threat_defense
6.4.0.18
ciscofirepower_threat_defense
6.6.0
ciscofirepower_threat_defense
6.6.0.1
ciscofirepower_threat_defense
6.6.1
ciscofirepower_threat_defense
6.6.3
ciscofirepower_threat_defense
6.6.4
ciscofirepower_threat_defense
6.6.5
ciscofirepower_threat_defense
6.6.5.1
ciscofirepower_threat_defense
6.6.5.2
ciscofirepower_threat_defense
6.6.7
ciscofirepower_threat_defense
6.6.7.1
ciscofirepower_threat_defense
6.6.7.2
ciscofirepower_threat_defense
6.7.0
ciscofirepower_threat_defense
6.7.0.1
ciscofirepower_threat_defense
6.7.0.2
ciscofirepower_threat_defense
6.7.0.3
ciscofirepower_threat_defense
7.0.0
ciscofirepower_threat_defense
7.0.0.1
ciscofirepower_threat_defense
7.0.1
ciscofirepower_threat_defense
7.0.1.1
ciscofirepower_threat_defense
7.0.2
ciscofirepower_threat_defense
7.0.2.1
ciscofirepower_threat_defense
7.0.3
ciscofirepower_threat_defense
7.0.4
ciscofirepower_threat_defense
7.0.5
ciscofirepower_threat_defense
7.0.6
ciscofirepower_threat_defense
7.0.6.1
ciscofirepower_threat_defense
7.0.6.2
ciscofirepower_threat_defense
7.1.0
ciscofirepower_threat_defense
7.1.0.1
ciscofirepower_threat_defense
7.1.0.2
ciscofirepower_threat_defense
7.1.0.3
ciscofirepower_threat_defense
7.2.0
ciscofirepower_threat_defense
7.2.0.1
ciscofirepower_threat_defense
7.2.1
ciscofirepower_threat_defense
7.2.2
ciscofirepower_threat_defense
7.2.3
ciscofirepower_threat_defense
7.2.4
ciscofirepower_threat_defense
7.2.4.1
ciscofirepower_threat_defense
7.2.5
ciscofirepower_threat_defense
7.2.5.1
ciscofirepower_threat_defense
7.2.5.2
ciscofirepower_threat_defense
7.2.6
ciscofirepower_threat_defense
7.2.7
ciscofirepower_threat_defense
7.2.8
ciscofirepower_threat_defense
7.2.8.1
ciscofirepower_threat_defense
7.3.0
ciscofirepower_threat_defense
7.3.1
ciscofirepower_threat_defense
7.3.1.1
ciscofirepower_threat_defense
7.3.1.2
ciscofirepower_threat_defense
7.4.0
ciscofirepower_threat_defense
7.4.1
ciscofirepower_threat_defense
7.4.1.1
𝑥
= Vulnerable software versions
Common Weakness Enumeration