CVE-2018-15454

high Cisco
CVSS v3 Base Score
8.6
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
EPSS Score
4.4%
Exploitation probability in 30 days
Top 10% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Published: November 1, 2018 (2866 days ago)
Last Modified: August 11, 2026
Vendor: Cisco
Source: NVD

Description

A vulnerability in the Session Initiation Protocol (SIP) inspection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload or trigger high CPU, resulting in a denial of service (DoS) condition. The vulnerability is due to improper handling of SIP traffic. An attacker could exploit this vulnerability by sending SIP requests designed to specifically trigger this issue at a high rate across an affected device. Software updates that address this vulnerability are not yet available.

CWE

CWE-20

Affected Products

cisco adaptive security appliance softwarecisco secure firewall threat defense

References

🔗 www.securityfocus.com 🔗 www.securitytracker.com 🔗 tools.cisco.com 🔗 www.securityfocus.com 🔗 www.securitytracker.com