CVE-2021-1478
MEDIUMCisco Unified Communications Manager < 12.6 - Authenticated Denial of Service via JMX Port Access
Title source: llmDescription
A vulnerability in the Java Management Extensions (JMX) component of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected system. This vulnerability is due to an unsecured TCP/IP port. An attacker could exploit this vulnerability by accessing the port and restarting the JMX process. A successful exploit could allow the attacker to cause a DoS condition on an affected system.
References (1)
Core 1
Core References
Vendor Advisory vendor-advisory
x_refsource_cisco
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucm-dos-OO4SRYEf
Scores
CVSS v3
5.3
EPSS
0.0023
EPSS Percentile
46.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-284
Status
published
Products (2)
cisco/hosted_collaboration_mediation_fulfillment
< 12.6
cisco/unified_communications_manager
< 12.6 (2 CPE variants)
Published
May 06, 2021
Tracked Since
Feb 18, 2026