high8.6
CVE-2019-1887
A vulnerability in the Session Initiation Protocol (SIP) protocol implementation of Cisco Unified Communications Manager could allow an unauthenticated, remote…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cisco | Unified Communications Manager | Versions 10.5\(2.10000.5\), 11.5\(1.10000.6\), 12.0\(1.10000.10\), 12.5\(1.10000.22\) |