CVE-2026-22898
Published: 20 March 2026
Summary
CVE-2026-22898 is a critical-severity Missing Authentication for Critical Function (CWE-306) vulnerability in Qnap Qvr Pro. Its CVSS base score is 9.8 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 36.2% 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 AC-14 (Permitted Actions Without Identification or Authentication) and AC-3 (Access Enforcement).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly requires organizations to identify and limit critical functions accessible without identification or authentication, preventing exploitation of missing authentication vulnerabilities like this CVE.
Mandates unique identification and authentication for non-organizational users, blocking remote unauthenticated attackers from accessing critical functions.
Enforces approved authorizations for logical access to system resources, ensuring critical functions require proper authentication to mitigate unauthorized access.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The vulnerability is a missing authentication for critical functions in QVR Pro, a network-accessible application, enabling remote unauthenticated exploitation of a public-facing application.
NVD Description
A missing authentication for critical function vulnerability has been reported to affect QVR Pro. The remote attackers can then exploit the vulnerability to gain access to the system. We have already fixed the vulnerability in the following version: QVR Pro…
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2.7.4.14 and later
Deeper analysisAI
CVE-2026-22898 is a missing authentication for critical function vulnerability (CWE-306) affecting QVR Pro software 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), classifying it as critical due to its potential for severe impact without requiring user interaction or privileges.
Remote, unauthenticated attackers can exploit this vulnerability over the network with low complexity to gain unauthorized access to the affected system, enabling high levels of confidentiality, integrity, and availability compromise.
QNAP has fixed the vulnerability in QVR Pro version 2.7.4.14 and later. Additional details on mitigation are available in the vendor's security advisory at https://www.qnap.com/en/security-advisory/qsa-26-07.
Details
- CWE(s)