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CVE-2026-22900

QNAP Qunetswitch hard-coded credentials

9.8 CRITICALEPSS 0.32%
  1. Published20 Mar 2026

Description

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

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

QNAP Qunetswitch≥ 2.0.1.13077 < 2.0.5.0906

Remediation

Fixed in
QNAP Qunetswitch≥ 2.0.5.0906

References

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Frequently asked

Is CVE-2026-22900 being actively exploited?

CVE-2026-22900 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.32%.

How severe is CVE-2026-22900?

CVE-2026-22900 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.32% probability of exploitation.

Which products are affected by CVE-2026-22900?

Affected products include QNAP Qunetswitch.

How do I fix CVE-2026-22900?

Upgrade affected software to a fixed version, for example QNAP Qunetswitch 2.0.5.0906 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-22900 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.