How severe is CVE-2026-22623?

CVE-2026-22623 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-22623 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-22623?

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

Does CVE-2026-22623 have an EU (EUVD) identifier?

Yes. CVE-2026-22623 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5035.

When was CVE-2026-22623 published?

CVE-2026-22623 was published on 2026-01-30 and last updated on 2026-06-17.

CVE-2026-22623

CVE-2026-22623 is a high-severity vulnerability with a CVSS 3.x base score of 7.2. 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-77.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5035
Weakness: CWE-77
Published: 2026-01-30
Last modified: 2026-06-17

Description

Due to insufficient input parameter validation on the interface, authenticated users of certain HIKSEMI NAS products can execute arbitrary commands on the device by crafting specific messages.

Frequently asked questions

What is CVE-2026-22623?: Due to insufficient input parameter validation on the interface, authenticated users of certain HIKSEMI NAS products can execute arbitrary commands on the device by crafting specific messages.
How severe is CVE-2026-22623?: CVE-2026-22623 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-22623 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-22623?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-22623 have an EU (EUVD) identifier?: Yes. CVE-2026-22623 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5035.
When was CVE-2026-22623 published?: CVE-2026-22623 was published on 2026-01-30 and last updated on 2026-06-17.

References

https://www.hiksemitech.com/en/hiksemi/support/security-advisory.html

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