CVEvulnerability

CVE-2019-1887

7.5 HIGH Published 2019-07-06 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-07-06
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
8.6 HIGH — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 3.0 ([email protected])
7.5 HIGH — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-787

Description

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 configurations

• cisco unified communications manager 10.5\(2.10000.5\) • cisco unified communications manager 11.5\(1.10000.6\) • cisco unified communications manager 12.0\(1.10000.10\) • cisco unified communications manager 12.5\(1.10000.22\)

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References