Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.008
EPSS Ranking 72.1%
CVSS Severity
CVSS v3 Score 8.6
CVSS v2 Score 5.0
References
Products affected by CVE-2019-1887
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cpe:2.3:a:cisco:unified_communications_manager:10.5(2.10000.5)
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cpe:2.3:a:cisco:unified_communications_manager:11.5(1.10000.6)
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cpe:2.3:a:cisco:unified_communications_manager:12.0(1.10000.10)
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cpe:2.3:a:cisco:unified_communications_manager:12.5(1.10000.22)