CVE-2020-3596CWE-789

Cisco Expressway Series and TelePresence Video Communication Server Denial of Service Vulnerability

Medium · published October 8, 2020

CVSS v3.1
5.9
EPSS
1%
Percentile
68.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01228 · 68.7th percentile
Weakness
CWE-789 · Memory Allocation with Excessive Size Value
Published
2020-10-08T04:20Z
EPSS history
Timeline
  • 08 OCT 04:20Z
    Cisco Expressway Series and TelePresence Video Communication Server Denial of Service Vulnerability
    cvelistv5