What is CVE-2016-6377?

CVE-2016-6377 is a high-severity vulnerability in Cisco Media Origination System Suite, classified under Improper Authentication. CVSS score: 8.1/10. Published 2016-09-03.

How severe is CVE-2016-6377?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Cisco Media Origination System Suite

CVE-2016-6377

Media Origination System Suite Software 2.6 and earlier in Cisco Virtual Media Packager (VMP) allows remote attackers to bypass authentication and make arbitrary Platform and Applications Manager (PAM) API calls via unspecified vectors, aka Bug ID CSCuz52110.

Vulnerability class: Broken Authentication

Published 2016-09-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (68.7th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Cisco Media Origination System Suite — versions 2.5(0), 2.6_base, 2.3\(2\)

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160831… (vendor-advisory, Vendor Advisory)
www.securityfocus.com/bid/92715 (vdb-entry)

Frequently asked questions

What is CVE-2016-6377?: CVE-2016-6377 is a high-severity vulnerability in Cisco Media Origination System Suite, classified under Improper Authentication. CVSS score: 8.1/10. Published 2016-09-03.
How severe is CVE-2016-6377?: High severity. CVSS v3 base score is 8.1 out of 10.