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HIGH

Cisco Firepower Threat Defense Software Packet Inspection and Enforcement Bypass Vulnerability

Published Jan 24, 2019

Description

A vulnerability in the data acquisition (DAQ) component of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured access control policies or cause a denial of service (DoS) condition. The vulnerability exists because the affected software improperly manages system memory resources when inspecting traffic. An attacker could exploit this vulnerability by generating specific traffic patterns for the software to inspect. A successful exploit could allow the attacker to exhaust system memory resources used for traffic inspection. Depending on the configuration, the FTD Software could fail open and cease to inspect traffic or fail closed and result in a DoS condition. This vulnerability may require manual intervention to restore the software.

Affected products

Remediation

No remediation recorded yet.

Metrics

Weaknesses (1)

References (2)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner cisco
Published Jan 24, 2019
Updated Nov 19, 2024
Reserved Dec 6, 2018
CISA Vulnrichment
Updated Nov 19, 2024
NVD
Status Modified
Modified Aug 11, 2026
Red Hat
Severity n/a
Public date n/a