dbcve.org
QtsOperating system · Qnap

CVE-2023-39298

HIGH · 7.8 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 →
80/100
Remediation priority · High
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 missing authorization vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow local authenticated users to access data or perform actions that they should not be allowed to perform via unspecified vectors. QuTScloud, is not affected. We have already fixed the vulnerability in the following versions: QTS 5.2.0.2737 build 20240417 and later QuTS hero h5.2.0.2782 build 20240601 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 missing authorization (broken access control) vulnerability in QNAP QTS and QuTS hero operating systems that allows authenticated local users to access data or perform actions beyond their intended permissions through unspecified vectors.

MitigationUpgrade to QTS 5.2.0.2737 build 20240417 or later, or QuTS hero h5.2.0.2782 build 20240601 or later. QuTScloud is unaffected.

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
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/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 QNAP operating system product
    Check the system information or about page in QTS/QuTS hero admin interface to determine if the system is running QTS, QuTS hero, or QuTScloud
    Affected if System is running QTS or QuTS hero (QuTScloud is unaffected)
  2. Check QTS firmware version
    In QTS admin interface, go to Control Panel > System > Firmware Update > Check firmware version, or use the command `getsysinfo` via SSH
    Affected if Version matches any of: 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
  3. Check QuTS hero firmware version
    In QuTS hero admin interface, go to Control Panel > System > Firmware Update > Check firmware version, or use the command `getsysinfo` via SSH
    Affected if Version matches any of: 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

The environment is affected if running QTS or QuTS hero and the installed version matches one of the listed vulnerable versions; QuTScloud is not affected by this CVE.

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

Upgrade to QTS 5.2.0.2737 build 20240417 or later, or QuTS hero h5.2.0.2782 build 20240601 or later. QuTScloud is unaffected.

Recommended fix High confidence

QTS 5.2.0.2737 (build 20240417) or QuTS hero h5.2.0.2782 (build 20240601) depending on product

  1. 1. Identify the current QNAP OS version by accessing the QNAP admin console and checking System Settings > About
  2. 2. If running QTS, verify the current version is one of the affected versions (5.1.0.2348, 5.1.0.2399, 5.1.0.2418, or 5.1.0.2444)
  3. 3. If running QuTS hero, verify the current version is one of the affected versions (h5.1.0.2409, h5.1.0.2424, h5.1.0.2453, or h5.1.0.2466)
  4. 4. For QTS systems: Update to QTS version 5.2.0.2737 build 20240417 or later via the QNAP Control Panel > System > Firmware Update
  5. 5. For QuTS hero systems: Update to QuTS hero version h5.2.0.2782 build 20240601 or later via the QNAP Control Panel > System > Firmware Update
  6. 6. After updating, verify the new version matches or exceeds the fixed versions listed
  7. 7. Confirm the vulnerability is resolved by verifying the system operates normally post-update
Caveat Major version upgrade from QTS 5.1.x to 5.2.x may introduce compatibility changes; review QNAP release notes for any breaking changes before upgrading

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

Fix this in Qts Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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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-2023-39298 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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