CVE-2022-20748: 
Cisco Firepower Threat Defense (FTD) vulnerability analysis and mitigation

A vulnerability (CVE-2022-20748) was identified in the local malware analysis process of Cisco Firepower Threat Defense (FTD) Software. The vulnerability, discovered through internal security testing, was publicly disclosed on April 27, 2022. It affects Cisco FTD Software version 7.0.0 when running with Malware and File policy with Local Malware Analysis enabled (Cisco Advisory).

The vulnerability stems from insufficient error handling in the local malware analysis process of affected devices. It has been assigned a CVSS Base Score of 5.3 (Medium) with the vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L, indicating that it can be exploited remotely without requiring privileges or user interaction (Cisco Advisory).

A successful exploitation of this vulnerability could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected device. The local malware analysis process could crash, requiring manual intervention to recover. However, malware cloud lookup and dynamic analysis capabilities remain unaffected (Cisco Advisory).

Cisco has released software updates that address this vulnerability in version 7.0.1. There are no workarounds available for this vulnerability. Organizations running affected versions should upgrade to a fixed release. The Local Malware Analysis feature is enabled through Cisco Firepower Management Center (FMC) Software and requires a Malware license (Cisco Advisory).