CVE-2015-6019

HIGHNVD 8.58.5—

8.5

The management portal on ZyXEL PMG5318-B20A devices with firmware 1.00AANC0b5 does not terminate sessions upon a logout action, which allows remote attackers to bypass intended access restrictions by leveraging an unattended workstation.

CVSS v3: 8.5
EG Score: 8.5(medium)
EPSS: 57.9%
KEV: Not listed

Published

December 31, 2015

Last Modified

May 6, 2026

References (6)

cret@certhttp://www.securitytracker.com/id/1034553
cret@certhttps://www.kb.cert.org/vuls/id/870744
cret@certhttps://www.kb.cert.org/vuls/id/BLUU-9ZQU2R
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1034553
af854a3a-2127-422b-91ae-364da2661108https://www.kb.cert.org/vuls/id/870744
af854a3a-2127-422b-91ae-364da2661108https://www.kb.cert.org/vuls/id/BLUU-9ZQU2R

Data Freshness Timeline

(refreshed 8× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:14 UTCEPSS rescore
2026-06-07 15:22 UTCEPSS rescore
2026-06-06 13:45 UTCEPSS rescore
2026-06-05 22:44 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:10 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 00:14 UTCEPSS rescore
2026-05-29 13:41 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-26 13:41 UTCEPSS rescore

Frequently asked(5)

What is CVE-2015-6019?

CVE-2015-6019 is a high vulnerability published on December 31, 2015. The management portal on ZyXEL PMG5318-B20A devices with firmware 1.00AANC0b5 does not terminate sessions upon a logout action, which allows remote attackers to bypass intended access restrictions by leveraging an unattended workstation.

When was CVE-2015-6019 disclosed?

CVE-2015-6019 was first published in the National Vulnerability Database on December 31, 2015, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2015-6019 actively exploited?

CVE-2015-6019 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 57.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2015-6019?

CVE-2015-6019 has a CVSS v3 base score of 8.5 (NVD).

How do I remediate CVE-2015-6019?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-6019, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2015-6019

📅 Published

🔄 Last Modified

🔗 References (6)