QNAP VioStor NVR devices with firmware 4.0.3, and the Surveillance Station Pro component in QNAP NAS, have a hardcoded guest account, which allows remote attackers to obtain web-server login access via unspecified vectors.
http://www.kb.cert.org/vuls/id/927644
Source: Mitre, NVD
Published: 2013-06-07
Updated: 2026-06-16
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
EPSS: 0.00338