CVE-2022-20804

published 2022-04-21

CVE-2022-20804: A vulnerability in the Cisco Discovery Protocol of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session…

Priority P4 27 medium 6.5 CVSS 3.1

AV A AC L PR N UI N S U C N I N A H

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.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
cisco	cisco_unified_communications_manager	—	—
cisco	unified_communications_manager	<= 14.0	—
cisco	unified_communications_products	—	—

CVSS provenance

nvd v3.1 6.5 MEDIUM CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd v2.0 6.1 MEDIUM AV:A/AC:L/Au:N/C:N/I:N/A:C

vendor_cisco 5.3 MEDIUM

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CWE-754