Vulnerability · Published Apr 21, 2022 · Assigned by cisco

CVE-2022-20804Cisco Unified Communications Products Denial of Service Vulnerability

Medium 5.3

In plain English

A medium-severity security flaw in Cisco Unified Communications Manager from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.4%top 71.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Cisco	Cisco Unified Communications Manager	n/a

Weakness: CWE-754 · Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References

20220420 Cisco Unified Communications Products Denial of Service Vulnerability vendor-advisory, x_refsource_CISCO