How severe is CVE-2026-22900?

CVE-2026-22900 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-22900 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-22900?

CVE-2026-22900 affects Qnap Qunetswitch. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-22900?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-22900 have an EU (EUVD) identifier?

Yes. CVE-2026-22900 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13720.

When was CVE-2026-22900 published?

CVE-2026-22900 was published on 2026-03-20 and last updated on 2026-06-17.

CVE-2026-22900

CVE-2026-22900 is a critical-severity vulnerability in Qnap Qunetswitch with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 6.8
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-13720
Weakness: CWE-798
Affected product: Qnap Qunetswitch
Published: 2026-03-20
Last modified: 2026-06-17

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

Frequently asked questions

What is CVE-2026-22900?: 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
How severe is CVE-2026-22900?: CVE-2026-22900 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-22900 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-22900?: CVE-2026-22900 affects Qnap Qunetswitch. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-22900?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-22900 have an EU (EUVD) identifier?: Yes. CVE-2026-22900 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13720.
When was CVE-2026-22900 published?: CVE-2026-22900 was published on 2026-03-20 and last updated on 2026-06-17.

References

https://www.qnap.com/en/security-advisory/qsa-26-11

Affected products (1)

cpe:2.3:a:qnap:qunetswitch:*:*:*:*:*:*:*:*

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