What is CVE-2015-6020?

CVE-2015-6020 is a high-severity vulnerability in Zyxel Pmg5318-B20a Firmware, classified under CWE-264. CVSS score: 8.0/10. Published 2015-12-31.

How severe is CVE-2015-6020?

High severity. CVSS v3 base score is 8.0 out of 10.

Vulnerability in Zyxel Pmg5318-B20a Firmware

CVE-2015-6020

ZyXEL PMG5318-B20A devices with firmware 1.00AANC0b5 allow remote authenticated users to obtain administrative privileges by leveraging access to the user account.

Published 2015-12-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.022 (81.9th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000

Affected products

Zyxel Pmg5318-B20a Firmware — versions v100aanc0b5

Weakness classification (CWE)

CWE-264

References

www.securitytracker.com/id/1034553 (vdb-entry)
www.kb.cert.org/vuls/id/BLUU-9ZQU2R (US Government Resource, Third Party Advisory)
www.kb.cert.org/vuls/id/870744 (US Government Resource, Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2015-6020?: CVE-2015-6020 is a high-severity vulnerability in Zyxel Pmg5318-B20a Firmware, classified under CWE-264. CVSS score: 8.0/10. Published 2015-12-31.
How severe is CVE-2015-6020?: High severity. CVSS v3 base score is 8.0 out of 10.