Skip to main content

Qvr Pro EUVDEUVD-2026-13718

| CVE-2026-22898 CRITICAL
Missing Authentication for Critical Function (CWE-306)
2026-03-20 qnap
9.3
CVSS 4.0 · NVD
View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Send unauthenticated network request
  2. Exploit
    Access critical QVR Pro function
  3. Execution
    Bypass authentication mechanism
  4. Impact
    Gain unauthorized system access

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication required for critical functions
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

No special conditions — remote unauthenticated exploitation against QVR Pro versions prior to 2.7.4.14. A critical function lacks authentication, allowing remote attackers to gain full system access over the network without credentials or user interaction.

Impact

This vulnerability presents elevated real-world risk despite missing CVSS metrics. The attack vector is remote network-based with no authentication required (by definition of the vulnerability class), and exploitation complexity appears low given that the flaw involves missing authentication checks entirely. The lack of documented EPSS score, KEV status, or public proof-of-concept availability suggests this may be a recently disclosed or embargoed vulnerability, but the fundamental nature of authentication bypass in a surveillance management platform means automated exploitation is highly probable once weaponized. The criticality is compounded by the fact that QVR Pro manages video recording infrastructure—compromised instances could result in footage deletion, surveillance system takeover, or lateral network movement into protected networks. The availability of a patch (version 2.7.4.14+) confirms vendor acknowledgment and should be prioritized for immediate deployment.

Exploit ScenarioDerived

An attacker on the internet scans for exposed QVR Pro instances and sends an unauthenticated HTTP request to a critical administrative endpoint (such as system configuration, user management, or video archive access). Due to the missing authentication check, the application processes the request as if it came from an authenticated administrator, allowing the attacker to retrieve sensitive information, modify recording settings, delete footage, or create backdoor accounts for persistent access. The attack requires no credentials and can be fully automated, making it a high-probability threat once the vulnerability details become public.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
Patch available 0.4% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Mar 20, 2026

QVR Pro contains a missing authentication vulnerability (CWE-306) that allows remote attackers to access critical functions without proper credential validation, potentially gaining unauthorized system access. All versions prior to QVR Pro 2.7.4.14 are affected. This authentication bypass vulnerability enables unauthenticated remote exploitation of a surveillance management platform, representing a direct threat to organizations relying on QVR Pro for video recording and system administration.

RemediationAI

Immediately upgrade QVR Pro to version 2.7.4.14 or later as provided by QNAP (see security advisory at https://www.qnap.com/en/security-advisory/qsa-26-07). Until patching is completed, implement network-level mitigations including restricting direct network access to QVR Pro systems to trusted administrative networks only, deploying a reverse proxy with mandatory authentication and TLS enforcement, and disabling or isolating any critical functions that do not require authentication. Monitor QVR Pro access logs for evidence of exploitation attempts, particularly requests to administrative or configuration endpoints originating from untrusted sources. If immediate patching is not feasible, consider temporarily taking affected QVR Pro instances offline until the update can be applied.

Affected VersionsENISA

QVR Pro 2.7.x <2.7.4.14

Affected Packages

euvd qvr_pro fix: 2.7.4.14

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

QVR Pro is QNAP's professional video recording and management solution, identified via CPE cpe:2.3:a:qnap_systems_inc.:qvr_pro. The vulnerability stems from CWE-306 (Missing Authentication for Critical Function), a root cause classification indicating that certain critical application functions lack proper authentication mechanisms. This suggests that one or more API endpoints, administrative functions, or system configuration interfaces within QVR Pro fail to validate user credentials before processing requests, allowing the application to treat unauthenticated requests as if they were legitimately authenticated. The absence of CVSS scoring in the advisory may indicate this is a pre-disclosure or preliminary report, though the severity is evident from the authentication bypass nature and remote attack vector.

Know when Qvr Pro gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 9.3 CRITICAL
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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vulnerable system: Confidentiality
High
Vulnerable system: Integrity
High
Vulnerable system: Availability
High
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

3
Analysis Updated
Apr 16, 2026 - 05:49 EUVD-patch-fix
executive summary
Patch available
Apr 16, 2026 - 05:29 EUVD
2.7.4.14
CVE Published
Mar 20, 2026 - 16:21 nvd
CRITICAL 9.3

DescriptionCVE.org

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 2.7.4.14 and later

Executive ViewAI

Why It Matters

QVR Pro versions before 2.7.4.14 contain an authentication bypass vulnerability that permits unauthenticated remote attackers to access critical administrative functions, potentially compromising surveillance systems and organizational security infrastructure. Organizations using QVR Pro face immediate risk of unauthorized system access, data exfiltration, and loss of video surveillance integrity without urgent remediation.

Business Impact: Severe
Compensating Controls

Apply vendor patch to version 2.7.4.14 or later. Pending patching: restrict QVR Pro administrative interfaces to trusted internal networks only using firewall rules; disable external remote access if not operationally required; implement network-level authentication or VPN requirement for all QVR Pro connections; monitor access logs for suspicious connection patterns.

Threat Intelligence Overview

EPSS Score
0.4%
Top 41% exploitable
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 0.4%
Patch available Yes
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Out-of-Cycle
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
Very High

Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +46
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy