CVE-2022-20804

Cisco Unified Communications Products Denial of Service Vulnerability

Description

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.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.32%
Vendor Advisory cisco.com
Affected: Cisco Cisco Unified Communications Manager
Published at:
Updated at:

References

Link Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucm-dos-zHS9X9kD vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-20804?
CVE-2022-20804 has been scored as a medium severity vulnerability.
How to fix CVE-2022-20804?
To fix CVE-2022-20804, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-20804 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-20804 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-20804?
CVE-2022-20804 affects Cisco Cisco Unified Communications Manager.
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