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.
Metrics
CVSS 3.1 5.8/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Firepower Threat Defense Software | 6.2.3; 6.2.3.1; 6.2.3.2; 6.2.3.3; 6.2.3.4; 6.2.3.5; 6.2.3.6; 6.2.3.7; 6.2.3.8; 6.2.3.10; 6.2.3.11; 6.2.3.9; 6.2.3.12; 6.2.3.13; 6.2.3.14; 6.2.3.15; 6.2.3.16; 6.2.3.17; 6.2.3.18; 6.6.0 |
| cisco | firepower_threat_defense_software | >= 6.2.3, <= 6.2.3.18; >= 6.4.0, <= 6.4.0.18; >= 6.6.0, <= 6.6.7.2; >= 6.7.0, <= 6.7.0.3; >= 7.0.0, <= 7.0.6.2; >= 7.1.0, <= 7.1.0.3; >= 7.2.0, <= 7.2.8.1; >= 7.3.0, <= 7.3.1.2; >= 7.4.0, <= 7.4.1.1 |
References
Timeline
- Published
- Oct 23, 2024
- Last modified
- Aug 11, 2026
- NVD status
- Analyzed