CVE-2023-39298

Unauthorized data access via missing authorization

Published Sep 6, 2024 · Updated Sep 6, 2024

Missing authorization in affected QNAP QTS and QuTS hero releases allows local authenticated users to access data or perform unauthorized actions. QNAP has not disclosed the affected component or the operation that omits the required authorization check, and identifies the vectors as unspecified. A valid local account is required; the bounded impact includes unauthorized data access and actions, while QuTScloud is not affected.

CVSS severity7.8
High
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in affected QNAP QTS and QuTS hero releases allows local authenticated users to access data or perform unauthorized actions. QNAP has not disclosed the affected component or the operation that omits the required authorization check, and identifies the vectors as unspecified. A valid local account is required; the bounded impact includes unauthorized data access and actions, while QuTScloud is not affected.

The record

CVE
CVE-2023-39298
Published
Sep 6, 2024
Updated
Sep 6, 2024
Vendor
Linn Products Limited
Product
QuTS hero
Classifications
CWE-862
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 6, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=h4.5.x
  2. Affected versionversion=h5.0.x
  3. Affected versionversion=h5.1.x <h5.2.0.2782
  4. Affected versionversion=h5.1.x <h5.2.0.2782 build 20240601

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Linn Products Limited · QuTS heroversion=h4.5.x; version=h5.0.x; version=h5.1.x <h5.2.0.2782; version=h5.1.x <h5.2.0.2782 build 20240601
Linn Products Limited · QuTScloudversion=c5.0.0 <h5.2.0.2782
Linn Products Limited · QTSversion=4.5.x; version=5.0.x; version=5.1.x <5.2.0.2737; version=5.1.x <5.2.0.2737 build 20240417

Published CVSS scores

7.8QNAP Systems, Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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