Cisco Unified Communications Manager SIP Protocol Implementation Denial of Service Vulnerability

CVE-2019-1887 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:N/A:P

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.

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