> CVE-2024-20407 [MEDIUM]

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PUBLISHED
2024-10-23 18:15
MODIFIED
2025-08-05 14:53
CVSS_SCORE V3
5.8
EPSS (Prob. Exploit)
0.40%
Top 65.0%
DATA SOURCES:
NVD 🔗 2025-10-18 CVE PROJECT 🔗 2026-01-19 FIRST EPSS 🔗 2026-11-08

> DESCRIPTION

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.

> AFFECTED_PRODUCTS

Cisco - Firepower Threat Defense
Version: 6.2.3
Cisco - Firepower Threat Defense
Version: 6.2.3.1
Cisco - Firepower Threat Defense
Version: 6.2.3.2
Cisco - Firepower Threat Defense
Version: 6.2.3.3
Cisco - Firepower Threat Defense
Version: 6.2.3.4
Cisco - Firepower Threat Defense
Version: 6.2.3.5
Cisco - Firepower Threat Defense
Version: 6.2.3.6
Cisco - Firepower Threat Defense
Version: 6.2.3.7
Cisco - Firepower Threat Defense
Version: 6.2.3.8
Cisco - Firepower Threat Defense
Version: 6.2.3.9
Cisco - Firepower Threat Defense
Version: 6.2.3.10
Cisco - Firepower Threat Defense
Version: 6.2.3.11
Cisco - Firepower Threat Defense
Version: 6.2.3.12
Cisco - Firepower Threat Defense
Version: 6.2.3.13
Cisco - Firepower Threat Defense
Version: 6.2.3.14
Cisco - Firepower Threat Defense
Version: 6.2.3.15
Cisco - Firepower Threat Defense
Version: 6.2.3.16
Cisco - Firepower Threat Defense
Version: 6.2.3.17
Cisco - Firepower Threat Defense
Version: 6.2.3.18
Cisco - Firepower Threat Defense
Version: 6.4.0
Cisco - Firepower Threat Defense
Version: 6.4.0.1
Cisco - Firepower Threat Defense
Version: 6.4.0.2
Cisco - Firepower Threat Defense
Version: 6.4.0.3
Cisco - Firepower Threat Defense
Version: 6.4.0.4
Cisco - Firepower Threat Defense
Version: 6.4.0.5
Cisco - Firepower Threat Defense
Version: 6.4.0.6
Cisco - Firepower Threat Defense
Version: 6.4.0.7
Cisco - Firepower Threat Defense
Version: 6.4.0.8
Cisco - Firepower Threat Defense
Version: 6.4.0.9
Cisco - Firepower Threat Defense
Version: 6.4.0.10
Cisco - Firepower Threat Defense
Version: 6.4.0.11
Cisco - Firepower Threat Defense
Version: 6.4.0.12
Cisco - Firepower Threat Defense
Version: 6.4.0.13
Cisco - Firepower Threat Defense
Version: 6.4.0.14
Cisco - Firepower Threat Defense
Version: 6.4.0.15
Cisco - Firepower Threat Defense
Version: 6.4.0.16
Cisco - Firepower Threat Defense
Version: 6.4.0.17
Cisco - Firepower Threat Defense
Version: 6.4.0.18
Cisco - Firepower Threat Defense
Version: 6.6.0
Cisco - Firepower Threat Defense
Version: 6.6.0.1
Cisco - Firepower Threat Defense
Version: 6.6.1
Cisco - Firepower Threat Defense
Version: 6.6.3
Cisco - Firepower Threat Defense
Version: 6.6.4
Cisco - Firepower Threat Defense
Version: 6.6.5
Cisco - Firepower Threat Defense
Version: 6.6.5.1
Cisco - Firepower Threat Defense
Version: 6.6.5.2
Cisco - Firepower Threat Defense
Version: 6.6.7
Cisco - Firepower Threat Defense
Version: 6.6.7.1
Cisco - Firepower Threat Defense
Version: 6.6.7.2
Cisco - Firepower Threat Defense
Version: 6.7.0
Cisco - Firepower Threat Defense
Version: 6.7.0.1
Cisco - Firepower Threat Defense
Version: 6.7.0.2
Cisco - Firepower Threat Defense
Version: 6.7.0.3
Cisco - Firepower Threat Defense
Version: 7.0.0
Cisco - Firepower Threat Defense
Version: 7.0.0.1
Cisco - Firepower Threat Defense
Version: 7.0.1
Cisco - Firepower Threat Defense
Version: 7.0.1.1
Cisco - Firepower Threat Defense
Version: 7.0.2
Cisco - Firepower Threat Defense
Version: 7.0.2.1
Cisco - Firepower Threat Defense
Version: 7.0.3
Cisco - Firepower Threat Defense
Version: 7.0.4
Cisco - Firepower Threat Defense
Version: 7.0.5
Cisco - Firepower Threat Defense
Version: 7.0.6
Cisco - Firepower Threat Defense
Version: 7.0.6.1
Cisco - Firepower Threat Defense
Version: 7.0.6.2
Cisco - Firepower Threat Defense
Version: 7.1.0
Cisco - Firepower Threat Defense
Version: 7.1.0.1
Cisco - Firepower Threat Defense
Version: 7.1.0.2
Cisco - Firepower Threat Defense
Version: 7.1.0.3
Cisco - Firepower Threat Defense
Version: 7.2.0
Cisco - Firepower Threat Defense
Version: 7.2.0.1
Cisco - Firepower Threat Defense
Version: 7.2.1
Cisco - Firepower Threat Defense
Version: 7.2.2
Cisco - Firepower Threat Defense
Version: 7.2.3
Cisco - Firepower Threat Defense
Version: 7.2.4
Cisco - Firepower Threat Defense
Version: 7.2.4.1
Cisco - Firepower Threat Defense
Version: 7.2.5
Cisco - Firepower Threat Defense
Version: 7.2.5.1
Cisco - Firepower Threat Defense
Version: 7.2.5.2
Cisco - Firepower Threat Defense
Version: 7.2.6
Cisco - Firepower Threat Defense
Version: 7.2.7
Cisco - Firepower Threat Defense
Version: 7.2.8
Cisco - Firepower Threat Defense
Version: 7.2.8.1
Cisco - Firepower Threat Defense
Version: 7.3.0
Cisco - Firepower Threat Defense
Version: 7.3.1
Cisco - Firepower Threat Defense
Version: 7.3.1.1
Cisco - Firepower Threat Defense
Version: 7.3.1.2
Cisco - Firepower Threat Defense
Version: 7.4.0
Cisco - Firepower Threat Defense
Version: 7.4.1
Cisco - Firepower Threat Defense
Version: 7.4.1.1

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Changed (C)
Impact s'étend au-delà du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
Low (L)
Modification limitée des données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
Low
Modification limitée des données possible
Disponibilité
None
Aucune interruption de service

> HISTORIQUE DES MODIFICATIONS

Première apparition
23/10/2024 18:15
Source: NVD
📊 ENRICHISSEMENT 18/10/2025 14:55
CVEPROJECT
Champ modifié: CVE Project
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 1 Dernière mise à jour: 1 year ago
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