dbcve.org
QtsOperating system · Qnap

CVE-2024-32763

HIGH · 8.8 CVSS v3.1 Published 2024-09-06
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
94/100
Remediation priority · Urgent
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 buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to execute code via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.8.2823 build 20240712 and later QuTS hero h5.1.8.2823 build 20240712 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

A buffer copy without checking size of input vulnerability (likely a buffer overflow) in QNAP QTS and QuTS hero allows authenticated users to execute arbitrary code via network. The lack of proper size bounds checking on input data enables overflowing a buffer and potentially gaining code execution privileges.

MitigationUpdate QNAP devices to QTS 5.1.8.2823 build 20240712 or later, or QuTS hero h5.1.8.2823 build 20240712 or later. Verify update compatibility with existing configurations before deployment.

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:= 5.1.0.2348= 5.1.0.2399= 5.1.0.2418= 5.1.0.2444= 5.1.0.2466= 5.1.1.2491= 5.1.2.2533= 5.1.3.2578= 5.1.4.2596= 5.1.5.2645= 5.1.5.2679= 5.1.6.2722
Quts HeroOperating system
Affected:= h5.1.0.2409= h5.1.0.2424= h5.1.0.2453= h5.1.0.2466= h5.1.1.2488= h5.1.2.2534= h5.1.3.2578= h5.1.4.2596= h5.1.5.2647= h5.1.5.2680= h5.1.6.2734= h5.1.7.2770

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

CVSS:3.1/AV:N/AC:L/PR:L/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 the QTS or QuTS hero version
    Log into the QNAP admin console and navigate to Control Panel > System > Firmware, or run `cat /proc/version` via SSH to view the firmware build number
    Affected if The displayed version matches any of the affected versions: QTS 5.1.0.2348 through 5.1.6.2722, or QuTS hero h5.1.0.2409 through h5.1.7.2770
  2. Confirm the product type
    Check whether the NAS runs QTS or QuTS hero by reviewing the admin interface header or running `getsysinfo` via SSH
    Affected if The system is running either QTS or QuTS hero firmware
  3. Verify authentication is enabled
    Ensure user authentication is configured in Control Panel > Security, or check for local user accounts or domain integration
    Affected if The NAS allows authenticated user access (local accounts, LDAP, or domain users) which is the typical default configuration
  4. Check network exposure
    Review the network configuration in Control Panel > Network & Virtual Switch to determine if the NAS management interface is accessible from untrusted networks
    Affected if The admin interface is reachable from the internet or untrusted LAN segments

A system is affected if it runs any of the listed QTS or QuTS hero versions AND allows authenticated user access to the network management interface.

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

Update QNAP devices to QTS 5.1.8.2823 build 20240712 or later, or QuTS hero h5.1.8.2823 build 20240712 or later. Verify update compatibility with existing configurations before deployment.

Recommended fix High confidence

QTS 5.1.8.2823 build 20240712 or later / QuTS hero h5.1.8.2823 build 20240712 or later

  1. 1. Back up all critical data and configurations on the QNAP device
  2. 2. Verify the current QTS or QuTS hero version in System Administration > Firmware Update
  3. 3. For QTS: Navigate to Control Panel > System > Firmware Update and check for update to version 5.1.8.2823 (build 20240712) or later
  4. 4. For QuTS hero: Navigate to Control Panel > System > Firmware Update and check for update to version h5.1.8.2823 (build 20240712) or later
  5. 5. Apply the firmware update following QNAP's standard upgrade procedure
  6. 6. After reboot, verify the system is running the patched version (5.1.8.2823 build 20240712 or later for QTS; h5.1.8.2823 build 20240712 or later for QuTS hero)
  7. 7. Reconfigure any settings if needed and verify critical services are operational
Caveat Firmware updates on QNAP devices may require downtime and could affect installed apps - verify app compatibility before upgrading and backup all data

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

Fix this in Qts Scoped from the published advisory
  • Consultation1.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,040
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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-2024-32763 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