Malware RemoverApplication · Qnap

CVE-2025-11837

CRITICAL · 9.8 CVSS v3.1 Published 2026-01-02
Fix available
A fix is available. Upgrade to 6.6.8.20251023 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An improper control of generation of code vulnerability has been reported to affect Malware Remover. The remote attackers can then exploit the vulnerability to bypass protection mechanism. We have already fixed the vulnerability in the following version: Malware Remover 6.6.8.20251023 and later

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · low confidence

A code injection vulnerability in Malware Remover allows remote attackers to improperly control code generation, enabling them to bypass security protections. The vulnerability stems from insufficient validation or sanitization of input that leads to dynamic code execution.

MitigationOrganizations using Malware Remover versions prior to 6.6.8.20251023 should immediately upgrade to the fixed version to prevent remote attackers from exploiting the code injection to bypass protection mechanisms.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Malware RemoverApplication
Affected:>= 6.6.3, < 6.6.8.20251023

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Confirm Malware Remover is installed
    Log into QTS admin interface and navigate to App Center, or use the command line to query installed packages (e.g., qpkg -l or similar Qnap package listing command)
    Affected if Malware Remover does not appear in the installed applications list
  2. Locate the installed version number
    In QTS App Center, click on Malware Remover to view its details and version information; alternatively, check via command line if available
    Affected if Unable to retrieve version information from the Qnap system
  3. Compare version against affected range
    Check if the installed version falls within >= 6.6.3 and < 6.6.8.20251023. Note the exact version number displayed in the application details.
    Affected if The installed version is 6.6.3 or any version up to (but not including) 6.6.8.20251023

A Qnap system running Malware Remover with version 6.6.3 through 6.6.8.20251022 is affected by this code injection vulnerability.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 6.6.8.20251023 or later
Fixed in 6.6.8.20251023
Interim mitigation

Organizations using Malware Remover versions prior to 6.6.8.20251023 should immediately upgrade to the fixed version to prevent remote attackers from exploiting the code injection to bypass protection mechanisms.

Recommended fix High confidence

Malware Remover 6.6.8.20251023 or later

  1. Upgrade Malware Remover to version 6.6.8.20251023 or later via the QNAP App Center or System Update interface
  2. After upgrade, verify the installed version confirms the fix is applied
  3. Ensure Malware Remover protection features are re-enabled and functioning after the update

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Malware Remover Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing3.0 h
  • Review / QA2.0 h
8.0 hours of engineering $1,390
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,224.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-11837 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-11837 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data