Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2016-6440

The Cisco Unified Communications Manager (CUCM) may be vulnerable to data that can be displayed inside an iframe within a web page, which in turn could lead to a clickjacking attack. More Information: CSCuz64683 CSCuz64698. Known Affected Releases: 11.0(1.10000.10), 11.5(1.10000.6), 11.5(0.99838.4). Known Fixed Releases: 11.0(1.22048.1), 11.5(0.98000.1070), 11.5(0.98000.284)11.5(0.98000.346), 11.5(0.98000.768), 11.5(1.10000.3), 11.5(1.10000.6), 11.5(2.10000.2).

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.5, indicating it can be exploited remotely over the network with relatively low complexity though user interaction is required and does not require pre-existing privileges . The vulnerability impacts integrity (unauthorized modifications), for affected systems. Impacting 1 product from cisco organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2016, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2016-10-27T21:59:12.577

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 6.5 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	cisco	unified_communications_manager	11.5\(0.99838.4\)	Yes

References

http://www.securityfocus.com/bid/93521 ([email protected])
http://www.securitytracker.com/id/1037005 ([email protected])
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161012-ucm Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/93521 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1037005 (af854a3a-2127-422b-91ae-364da2661108)
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161012-ucm Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.