Vulnerability Details CVE-2018-15443
A vulnerability in the detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass a configured Intrusion Prevention System (IPS) rule that inspects certain types of TCP traffic. The vulnerability is due to incorrect TCP retransmission handling. An attacker could exploit this vulnerability by sending a crafted TCP connection request through an affected device. A successful exploit could allow the attacker to bypass configured IPS rules and allow uninspected traffic onto the network.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.008
EPSS Ranking 72.7%
CVSS Severity
CVSS v3 Score 5.8
CVSS v2 Score 5.0
Products affected by CVE-2018-15443
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cpe:2.3:a:cisco:firepower_system_software:-