Cyber Resilience

CVE-2026-22897

HighRCE

Published: 20 March 2026

Published
20 March 2026
Modified
25 March 2026
KEV Added
—
Patch
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CVSS Score v4 8.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0106 60.2th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-22897 is a high-severity OS Command Injection (CWE-78) vulnerability in Qnap Qunetswitch. Its CVSS base score is 8.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 39.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2026-22897 is a command injection vulnerability (CWE-78) affecting QuNetSwitch, a component from QNAP. Published on 2026-03-20, it carries a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), indicating critical severity due to its potential for high-impact remote exploitation. The flaw allows remote attackers to execute arbitrary commands on affected systems.

Remote, unauthenticated attackers can exploit this vulnerability over the network with low complexity and no user interaction required. Successful exploitation grants attackers the ability to run arbitrary commands, potentially leading to full system compromise with high confidentiality, integrity, and availability impacts.

QNAP's security advisory (QSA-26-11) confirms the issue has been addressed in QuNetSwitch version 2.0.4.0415 and later, recommending immediate upgrades to mitigate the risk.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability details

A command injection vulnerability has been reported to affect QuNetSwitch. The remote attackers can then exploit the vulnerability to execute arbitrary commands. We have already fixed the vulnerability in the following version: QuNetSwitch 2.0.4.0415 and later

CWE(s)
CWE-78

Related Threats

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?

CVE enables remote exploitation of a public-facing application (T1190) via command injection, directly facilitating arbitrary Unix shell command execution (T1059.004) on Linux-based QNAP systems.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2026-22901Same product: Qnap Qunetswitch
CVE-2026-22900Same product: Qnap Qunetswitch
CVE-2025-30264Same product class: NAS / storage appliance
CVE-2024-50390Same product class: NAS / storage appliance
CVE-2024-56808Same product class: NAS / storage appliance
CVE-2024-14026Same product class: NAS / storage appliance
CVE-2025-54153Same product class: NAS / storage appliance
CVE-2024-53700Same product class: NAS / storage appliance
CVE-2025-44015Same product class: NAS / storage appliance
CVE-2024-13086Same product class: NAS / storage appliance

Affected Assets

qnap
qunetswitch
2.0.1.13077 — 2.0.4.0415

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Directly mitigates CVE-2026-22897 by requiring timely flaw remediation through patching to QuNetSwitch version 2.0.4.0415 or later.

SI-10 Information Input Validation good match
prevent

Prevents command injection exploitation by validating remote inputs to block arbitrary command execution payloads.

SI-4 System Monitoring partial match
detect

Detects ongoing or successful command injection attacks by monitoring for indicators of unauthorized command execution on the system.

References