CVE-2022-20804CWE-754

Cisco Unified Communications Products Denial of Service Vulnerability

Medium · published April 21, 2022

CVSS v3.1
5.3
EPSS
0%
Percentile
27.6
In the wild
Unconfirmed
What it is

A vulnerability in the Cisco Discovery Protocol of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, adjacent attacker to cause a kernel panic on an affected system, resulting in a denial of service (DoS) condition. This vulnerability is due to incorrect processing of certain Cisco Discovery Protocol packets. An attacker could exploit this vulnerability by continuously sending certain Cisco Discovery Protocol packets to an affected device. A successful exploit could allow the attacker to cause a kernel panic on the system that is running the affected software, resulting in a DoS condition.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00351 · 27.6th percentile
Weakness
CWE-754 · Improper Check for Unusual or Exceptional Conditions
Published
2022-04-21T18:50Z
EPSS history
Timeline
  • 21 APR 18:50Z
    Cisco Unified Communications Products Denial of Service Vulnerability
    cvelistv5