Vulnerability Bulletins

Cisco Firepower Threat Defense Software SIP and Snort 3 Detection Engine Denial of Service Vulnerability

System information

Affected software Cisco


A vulnerability in the interaction of SIP and Snort 3 for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to restart. This vulnerability is due to a lack of error-checking when SIP bidirectional flows are being inspected by Snort 3. An attacker could exploit this vulnerability by sending a stream of crafted SIP traffic through an interface on the targeted device. A successful exploit could allow the attacker to

More info:

Standar resources

Property Value
CVE CVE-2022-20950.

Version history

Version Comments Date
1.0 Advisory issued 2022-12-25
Ministerio de Defensa