CVEvulnerability

CVE-2019-1721

6.5 MEDIUM Published 2019-04-18 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-04-18
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 3.0 ([email protected])
7.7 HIGH — CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CVSS 2.0 ([email protected])
6.8 MEDIUM — AV:N/AC:L/Au:S/C:N/I:N/A:C
Weaknesses
CWE-20

Description

A vulnerability in the phone book feature of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker to cause the CPU to increase to 100% utilization, causing a denial of service (DoS) condition on an affected system. The vulnerability is due to improper handling of the XML input. An attacker could exploit this vulnerability by sending a Session Initiation Protocol (SIP) message with a crafted XML payload to an affected device. A successful exploit could allow the attacker to exhaust CPU resources, resulting in a DoS condition. Manual intervention may be required to recover the device. This vulnerability is fixed in Cisco Expressway Series and Cisco TelePresence Video Communication Server Releases X12.5.1 and later.

Affected configurations

• cisco telepresence video communication server (< x12.5.1)

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References