What is CVE-2016-1400?

CVE-2016-1400 is a high-severity vulnerability in Cisco Telepresence Video Communication Server, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2016-05-25.

How severe is CVE-2016-1400?

High severity. CVSS v3 base score is 7.5 out of 10.

Improper input validation in Cisco Telepresence Video Communication Server

CVE-2016-1400

Cisco TelePresence Video Communications Server (VCS) X8.x before X8.7.2 allows remote attackers to cause a denial of service (service disruption) via a crafted URI in a SIP header, aka Bug ID CSCuy43258.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2016-05-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.018 (77.7th percentile), scored 2026-10-20.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Cisco Telepresence Video Communication Server — versions x8.1.1, x8.1.2, x8.1_base

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.securitytracker.com/id/1035899 (vdb-entry)
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160516… (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2016-1400?: CVE-2016-1400 is a high-severity vulnerability in Cisco Telepresence Video Communication Server, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2016-05-25.
How severe is CVE-2016-1400?: High severity. CVSS v3 base score is 7.5 out of 10.