Is CVE-2026-22900 in the CISA KEV catalog?

No. CVE-2026-22900 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-22900?

CVE-2026-22900 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2026-22900?

CVE-2026-22900 has an EPSS score of 0.32% (24th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2026-22900

CRITICAL

9.8

CVSS v3

NVD

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

CWE-798Hard-coded Credentials

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.32%probability of exploitation in 30 days

24thpercentile

Low risk: more likely to be exploited than 24% of all known CVEs.

References

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

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-25.