Skip to content
Fencer Intel
medium 6.5

CVE-2016-6440 json

The Cisco Unified Communications Manager (CUCM) may be vulnerable to data that can be displayed inside an iframe within a web page, which i…

published 2016-10-27 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-7363

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 64%
public exploits
0
none known

Summary

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).

Exploit prediction

1.05% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

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

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.