CVE-2026-22623

HighRCE

Published: 30 January 2026

Published

30 January 2026

Modified

15 April 2026

KEV Added

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Patch

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CVSS Score 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0003 8.6th percentile

Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-22623 is a high-severity Command Injection (CWE-77) vulnerability in Hiksemitech (inferred from references). Its CVSS base score is 7.2 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 8.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 1 other technique.

Threat & Defense Details

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1059.004 Unix Shell Execution

Adversaries may abuse Unix shell commands and scripts for execution.

attack.mitre.org →

Why these techniques?

Command injection (CWE-77) on network-accessible NAS device directly enables remote arbitrary command execution by authenticated admins (T1190) via Unix shell (T1059.004).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD 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.

Deeper analysisAI

CVE-2026-22623, published on 2026-01-30, affects certain HIKSEMI NAS products due to insufficient input parameter validation on the interface. This command injection vulnerability (CWE-77) enables authenticated users to execute arbitrary commands on the device by crafting specific messages. It carries a CVSS v3.1 base score of 7.2 (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H), indicating high severity with network accessibility and significant impacts on confidentiality, integrity, and availability.

An attacker with high privileges, such as an authenticated administrative user, can exploit this vulnerability remotely over the network with low complexity and no user interaction required. By sending specially crafted messages, the attacker achieves arbitrary command execution on the underlying device, potentially leading to full compromise including data exfiltration, modification, or disruption of NAS operations.

Mitigation guidance is available in the vendor's security advisory at https://www.hiksemitech.com/en/hiksemi/support/security-advisory.html.