CVE-2026-22900: QNAP Qunetswitch

Critical severity, CVSS 9.8. EPSS: 0.3% chance of exploitation in the next 30 days.

A use of hard-coded credentials vulnerability has been reported to affect QuNetSwitch. The remote attackers can then exploit the vulnerability to gain unauthorized access. We have already fixed the vulnerability in the following version: QuNetSwitch 2.0.5.0906 and later

Affected products

• QNAP Qunetswitch: from 2.0.1.13077, before 2.0.5.0906 (fixed in 2.0.5.0906)

Published 2026-03-20. Last modified 2026-06-17.