{"cve":"CVE-2015-6016","nvd":{"published":"2015-12-31T05:59:14.833","modified":"2026-06-17T00:30:15.667","status":"Modified","description":"ZyXEL P-660HW-T1 2 devices with ZyNOS firmware 3.40(AXH.0), PMG5318-B20A devices with firmware 1.00AANC0b5, and NBG-418N devices have a default password of 1234 for the admin account, which allows remote attackers to obtain administrative access via unspecified vectors.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-255"],"references":["http://www.securitytracker.com/id/1034552","http://www.securitytracker.com/id/1034553","http://www.securitytracker.com/id/1034554","https://www.kb.cert.org/vuls/id/870744","https://www.kb.cert.org/vuls/id/BLUU-9ZQU2R"],"products":["zyxel:nbg-418n","zyxel:pmg5318-b20a_firmware","zyxel:zynos_firmware"],"source":"nvd","synced_at":"2026-10-19T20:37:48.328043465+00:00"},"epss":{"cve":"CVE-2015-6016","score":0.05731,"percentile":0.93047,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}