CVE-2019-1887

A vulnerability in the Session Initiation Protocol (SIP) protocol implementation of Cisco Unified Communications Manager could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient validation of input SIP traffic. An attacker could exploit this vulnerability by sending a malformed SIP packet to an affected Cisco Unified Communications Manager. A successful exploit could allow the attacker to trigger a new registration process on all connected phones, temporarily disrupting service.

Score

CVSS 3.0 8.6 High

Status

Modified - psirt@cisco.com

Published

2019-07-06

Last modified

2024-11-19

Weaknesses

CWE-787

Affected products

• Cisco Unified Communications Manager (Cisco)
• Unified Communications Manager (Cisco)

References

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703-cucm-dos