CVE-2020-27121
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
06/11/2020
Last modified:
07/11/2023
Description
A vulnerability in Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P) Software could allow an authenticated, remote attacker to cause the Cisco XCP Authentication Service on an affected device to restart, resulting in a denial of service (DoS) condition. The vulnerability is due to improper handling of login requests. An attacker could exploit this vulnerability by sending a crafted client login request to an affected device. A successful exploit could allow the attacker to cause a process to crash, resulting in a DoS condition for new login attempts. Users who are authenticated at the time of the attack would not be affected. There are workarounds that address this vulnerability.
Impact
Base Score 3.x
6.50
Severity 3.x
MEDIUM
Base Score 2.0
4.00
Severity 2.0
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:12.5\(1\):*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page