CVE-2020-3596 MEDIUM

CVE-2020-3596: Cisco Expressway Series and TelePresence Video Communication Server Denial of Service Vulnerability

Vendor Cisco
Product Cisco TelePresence Video Communication Server (VCS) Expressway
Weakness CWE-789
Published October 8, 2020
Last update November 13, 2024

CVSS base score

5.9/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

A vulnerability in the Session Initiation Protocol (SIP) of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to incorrect handling of incoming SIP traffic. An attacker could exploit this vulnerability by sending a series of SIP packets to an affected device. A successful exploit could allow the attacker to exhaust memory on an affected device, causing it to crash and leading to a DoS condition.

Key dates

02Disclosure timeline

October 8, 2020 CVE published
November 13, 2024 Record updated