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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…

Medium6.5EPSS 1.1%
Published
Updated
Reserved
Assigned by
cisco

Description

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).

Timeline

  1. ID reserved

    By cisco

  2. · 3 months later

    Published

  3. · 8 years later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2016-6440, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.0Medium6.5CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS (exploitation in 30 days)
1.1% · top 35% of all CVEs (8 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.

Weakness

Affected products

  • Cisco Unified Communications Manager 11.0(1.10000.10), 11.5(1.10000.6), 11.5(0.99838.4)

    • affected Cisco Unified Communications Manager 11.0(1.10000.10), 11.5(1.10000.6), 11.5(0.99838.4)

References (3)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .