RCE in Hiksemi Hs-Afs-S1h1

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.

Vulnerability class: Command Injection (OS Command Injection)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (41.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-22623: held from 0.005 to 0.005.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-22623?
CVE-2026-22623 is a high-severity vulnerability in Hiksemi Hs-Afs-S1h1, classified under Command Injection. CVSS score: 7.2/10. Published 2026-01-30.
How severe is CVE-2026-22623?
High severity. CVSS v3 base score is 7.2 out of 10.