Critical

Unauthenticated RCE in QNAP QVR Pro Plugin

IdentifiersCVE-2026-22898CWE-306· Missing Authentication for…

CVE-2026-22898 affects QNAP QVR Pro and is described by QNAP as a missing authentication for a critical function. Supporting reporting indicates the flaw exists in the QVRPro Plugin on QNAP TS-453E devices, where an exposed dangerous method can be reached without authentication. A network-adjacent or remote attacker can invoke the vulnerable functionality without valid credentials and achieve arbitrary code execution in the context of the postgres user. QNAP states the issue is fixed in QVR Pro 2.7.4.14 and later, and published advisory QSA-26-07.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows an unauthenticated attacker to gain unauthorized access to the affected system and, based on the supporting disclosure, execute arbitrary code as the postgres user. This can lead to compromise of confidentiality, integrity, and availability of the QVR Pro host, including potential access to surveillance data and configuration, manipulation of application behavior, and use of the compromised system as a foothold for further activity on the local network.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce exposure of QVR Pro by restricting network access to trusted management networks only, disabling or isolating the vulnerable service where feasible, and preventing unauthenticated reachability from untrusted segments. Monitor for suspicious access to QVR Pro endpoints and anomalous activity under the postgres account. These are temporary risk-reduction measures and do not replace upgrading to a fixed version.

Remediation

Patch, then assume compromise.

Upgrade QVR Pro to a fixed release. QNAP states the vulnerability is fixed in QVR Pro 2.7.4.14 and later; supporting reporting also references upgrading QVR Pro 2.7.x deployments to 2.7.4.1485 or later. Apply the vendor update via the QTS or QuTS hero App Center and verify the installed version after update. Review QNAP advisory QSA-26-07 for vendor-specific remediation guidance.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

QNAP SystemsQvr Proapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

7 SOURCESView more in app

cyber security newsNews

Mar 23, 2026

Critical QNAP QVR Pro Vulnerability Let Remote Attackers Gain Access to the System

A critical missing authentication vulnerability in QNAP QVR Pro that allows remote, unauthenticated attackers to gain unauthorized access to affected systems.

cvefeed high severityNews

Mar 20, 2026

CVE-2026-22898 - QVR Pro

A missing authentication for critical function vulnerability in QNAP QVR Pro that allows remote attackers to gain access to the system.

What this page doesn’t show

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This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity4

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES

MITRE CVE

cve.org · CVE-2026-22898

NVD

nvd.nist.gov/vuln/detail/CVE-2026-22898

MITRE CWE · CWE-306

Missing Authentication for Critical Function

Vendor Advisory

qnap.com/en/security-advisory/qsa-26-07