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.
https://www.kb.cert.org/vuls/id/BLUU-9ZQU2R
https://www.kb.cert.org/vuls/id/870744
http://www.securitytracker.com/id/1034553
Source: Mitre, NVD
Published: 2015-12-31
Updated: 2026-06-17
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N
Severity: Medium
Base Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
Severity: High
EPSS: 0.00499