High · published May 3, 2022
A vulnerability in the connection handling function in Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper traffic handling when platform limits are reached. An attacker could exploit this vulnerability by sending a high rate of UDP traffic through an affected device. A successful exploit could allow the attacker to cause all new, incoming connections to be dropped, resulting in a DoS condition.
| Product | Versions | Fixed in |
|---|---|---|
| cisco/secure_firewall_threat_defense | < 6.4.0.15 | 6.4.0.15 |
| cisco/secure_firewall_threat_defense | ≥ 6.5.0, < 6.6.5.2 | 6.6.5.2 |
| cisco/secure_firewall_threat_defense | ≥ 6.7.0, < 7.0.2 | 7.0.2 |
| cisco/secure_firewall_threat_defense | all versions | — |