dbcve.org
QtsOperating system · Qnap

CVE-2024-50398

HIGH · 7.2 CVSS v3.1 Published 2024-11-22
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
78/100
Remediation priority · High
Remotely reachable 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
A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow remote attackers who have gained administrator access to obtain secret data or modify memory. We have already fixed the vulnerability in the following versions: QTS 5.2.1.2930 build 20241025 and later QuTS hero h5.2.1.2929 build 20241025 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 · high confidence

This is a format string vulnerability (CWE-134) in QNAP QTS and QuTS hero NAS operating systems. When user-controlled input is used as a format string in functions like printf() without proper sanitization, attackers can read from the stack (obtaining secret data) or write to memory locations (modifying program behavior). The CVSS indicates this requires administrator-level access to exploit.

MitigationApply the vendor-supplied firmware updates (QTS 5.2.1.2930 build 20241025 or QuTS hero h5.2.1.2929 build 20241025 and later). Until patched, restrict administrative access to trusted networks and monitor for unauthorized admin account activity.

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
QtsOperating system
Affected:= 5.2.0.2737= 5.2.0.2744= 5.2.0.2782= 5.2.0.2802= 5.2.0.2823= 5.2.0.2851= 5.2.0.2860
Quts HeroOperating system
Affected:= h5.2.0.2737= h5.2.0.2782= h5.2.0.2789= h5.2.0.2802= h5.2.0.2823= h5.2.0.2851= h5.2.0.2860

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
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/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. Identify QNAP firmware version
    Log into QTS or QuTS hero web interface, go to Control Panel > System > Firm Update, or run 'getcfg system version' via SSH
    Affected if The displayed version matches any of these: QTS 5.2.0.2737, 5.2.0.2744, 5.2.0.2782, 5.2.0.2802, 5.2.0.2823, 5.2.0.2851, 5.2.0.2860 or QuTS hero h5.2.0.2737, h5.2.0.2782, h5.2.0.2789, h5.2.0.2802, h5.2.0.2823, h5.2.0.2851, 5.2.0.2860
  2. Verify firmware is pre-patch release
    Check if firmware build date is before 20241025, or compare version number against vendor fixed releases (QTS 5.2.1.2930 or QuTS hero h5.2.1.2929)
    Affected if Running any version listed in the affected products that is older than the patched releases
  3. Confirm admin access exposure
    Review network settings in Control Panel > System > Network > TCP/IP to see if the administration web interface (port 8080/443) is bound to WAN or an untrusted network
    Affected if Admin console is accessible from networks beyond the local trusted LAN

A user is affected if their QNAP device runs any of the listed QTS or QuTS hero versions and the administrative interface is network-accessible to attackers.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the vendor-supplied firmware updates (QTS 5.2.1.2930 build 20241025 or QuTS hero h5.2.1.2929 build 20241025 and later). Until patched, restrict administrative access to trusted networks and monitor for unauthorized admin account activity.

Recommended fix High confidence

QTS 5.2.1.2930 (build 20241025) or QuTS hero h5.2.1.2929 (build 20241025)

  1. 1. Identify the current QTS or QuTS Hero version by accessing the QNAP admin interface and checking System Settings > Firmware version
  2. 2. Determine if the installed version is one of the affected versions: QTS 5.2.0.2737, 5.2.0.2744, 5.2.0.2782, or 5.2.0.2802; or QuTS Hero h5.2.0.2737, h5.2.0.2782, h5.2.0.2789, or h5.2.0.2802
  3. 3. If affected, backup critical data and configurations before proceeding with the update
  4. 4. Access the QNAP admin interface and navigate to Control Panel > System Settings > Firmware Update
  5. 5. Select "Check for Update" to find the latest available version
  6. 6. Update to QTS 5.2.1.2930 build 20241025 or later (for QTS systems) or QuTS hero h5.2.1.2929 build 20241025 or later (for QuTS Hero systems)
  7. 7. Verify the update was successful by confirming the new firmware version in System Settings > Firmware
Caveat Standard QNAP firmware update best practices apply; ensure power stability during update and backup configurations

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

Fix this in Qts Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing2.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,420
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,272.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2024-50398 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

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-2024-50398 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

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