How severe is CVE-2026-22626?

CVE-2026-22626 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-22626 being actively exploited?

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

How do I fix CVE-2026-22626?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-22626 have an EU (EUVD) identifier?

Yes. CVE-2026-22626 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5038.

When was CVE-2026-22626 published?

CVE-2026-22626 was published on 2026-01-30 and last updated on 2026-06-17.

CVE-2026-22626

CVE-2026-22626 is a medium-severity vulnerability with a CVSS 3.x base score of 4.9. 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-233.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5038
Weakness: CWE-233
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 cause abnormal device behavior by crafting specific messages.

Frequently asked questions

What is CVE-2026-22626?: Due to insufficient input parameter validation on the interface, authenticated users of certain HIKSEMI NAS products can cause abnormal device behavior by crafting specific messages.
How severe is CVE-2026-22626?: CVE-2026-22626 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-22626 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-22626?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-22626 have an EU (EUVD) identifier?: Yes. CVE-2026-22626 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5038.
When was CVE-2026-22626 published?: CVE-2026-22626 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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