What is CVE-2016-1377?

CVE-2016-1377 is a medium-severity vulnerability in Cisco Unity Connection, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2016-04-12.

How severe is CVE-2016-1377?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Cisco Unity Connection

CVE-2016-1377

Cross-site scripting (XSS) vulnerability in Cisco Unity Connection through 11.0 allows remote attackers to inject arbitrary web script or HTML via unspecified parameters, aka Bug ID CSCus21776.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2016-04-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.010 (61.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 61.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Cisco Unity Connection — versions 10.5(2), 10.5(2.3009), 10.0.5

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.securitytracker.com/id/1035562 (vdb-entry)
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160412… (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2016-1377?: CVE-2016-1377 is a medium-severity vulnerability in Cisco Unity Connection, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2016-04-12.
How severe is CVE-2016-1377?: Medium severity. CVSS v3 base score is 6.1 out of 10.