Description
A vulnerability in the User Data Services (UDS) API of Cisco Unified Communications Manager (Unified CM) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the management GUI. The vulnerability is due to improper validation of input parameters in the UDS API requests. An attacker could exploit this vulnerability by sending a crafted request to the UDS API of an affected device. A successful exploit could allow the attacker to make the A Cisco DB service quit unexpectedly, preventing admin access to the Unified CM management GUI. Manual intervention may be required to restore normal operation. Software versions 10.5, 11.5, 12.0, 12.5 are affected.
References (2)
Core 2
Core References
Vendor Advisory vendor-advisory
x_refsource_cisco
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-ucm-dos
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/108019
Scores
CVSS v3
5.3
EPSS
0.0244
EPSS Percentile
82.2%
Attack Vector
NETWORK
CVSS:3.0/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-20
CWE-129
Status
published
Products (4)
cisco/unified_communications_manager
10.5\(2.10000.5\)
cisco/unified_communications_manager
11.5\(1.10000.6\)
cisco/unified_communications_manager
12.0\(1.10000.10\)
cisco/unified_communications_manager
12.5\(1.10000.22\)
Published
Apr 18, 2019
Tracked Since
Feb 18, 2026