CVE-2022-20804
Published Apr 21, 2022
Last updated a year ago
Overview
- 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.
- Source
- ykramarz@cisco.com
- NVD status
- Modified
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 6.5
- Impact score
- 3.6
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- MEDIUM
CVSS 2.0
- Type
- Primary
- Base score
- 6.1
- Impact score
- 6.9
- Exploitability score
- 6.5
- Vector string
- AV:A/AC:L/Au:N/C:N/I:N/A:C
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:-:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6F59D20F-0194-4A5A-8368-C6EA00438064",
"versionEndIncluding": "14.0"
},
{
"criteria": "cpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:session_management:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D7A033DD-54EB-442D-931D-749A24FF2E6B",
"versionEndIncluding": "14.0"
}
],
"operator": "OR"
}
]
}
]