What is CVE-2016-1307?

CVE-2016-1307 is a medium-severity vulnerability in Zyxel Gs1900-10hp Firmware, classified under CWE-255. CVSS score: 5.4/10. Published 2016-02-07.

How severe is CVE-2016-1307?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Auth bypass in Zyxel Gs1900-10hp Firmware

CVE-2016-1307

The Openfire server in Cisco Finesse Desktop 10.5(1) and 11.0(1) and Unified Contact Center Express 10.6(1) has a hardcoded account, which makes it easier for remote attackers to obtain access via an XMPP session, aka Bug ID CSCuw79085.

Published 2016-02-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.011 (66.2th percentile), scored 2026-10-24.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Zyxel Gs1900-10hp Firmware
Zzinc Keymouse Firmware — versions 3.08

Weakness classification (CWE)

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160202… (vendor-advisory, Vendor Advisory)
www.securitytracker.com/id/1034921 (vdb-entry)
www.securitytracker.com/id/1034920 (vdb-entry)

Frequently asked questions

What is CVE-2016-1307?: CVE-2016-1307 is a medium-severity vulnerability in Zyxel Gs1900-10hp Firmware, classified under CWE-255. CVSS score: 5.4/10. Published 2016-02-07.
How severe is CVE-2016-1307?: Medium severity. CVSS v3 base score is 5.4 out of 10.