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A path traversal vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to read the contents of unexpected files and expose sensitive data via a network.
We have already fixed the vulnerability in the following versions:
QTS 5.1.4.2596 build 20231128 and later
QTS 4.5.4.2627 build 20231225 and later
QuTS hero h5.1.3.2578 build 20231110 and later
QuTS hero h4.5.4.2626 build 20231225 and later
QuTScloud c5.1.5.2651 and later
Metrics
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CVE Modified by QNAP Systems, Inc.6/17/2026 2:40:48 AM
Action
Type
Old Value
New Value
Added
Affected
[{"vendor":"QNAP Systems Inc.","product":"QTS","defaultStatus":"unaffected","versions":[{"version":"5.1.x","lessThan":"5.1.4.2596 build 20231128","versionType":"custom","status":"affected"},{"version":"4.5.x","lessThan":"4.5.4.2627 build 20231225","versionType":"custom","status":"affected"}]},{"vendor":"QNAP Systems Inc.","product":"QuTS hero","defaultStatus":"unaffected","versions":[{"version":"h5.1.x","lessThan":"h5.1.3.2578 build 20231110","versionType":"custom","status":"affected"},{"version":"h4.5.x","lessThan":"h4.5.4.2626 build 20231225","versionType":"custom","status":"affected"}]},{"vendor":"QNAP Systems Inc.","product":"QuTScloud","defaultStatus":"unaffected","versions":[{"version":"c5.x","lessThan":"c5.1.5.2651","versionType":"custom","status":"unaffected"}]}]
Initial Analysis by NIST12/10/2025 5:09:47 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Added
CPE Configuration
OR
*cpe:2.3:o:qnap:quts_hero:h5.1.3.2578:-:*:*:*:*:*:*
*cpe:2.3:o:qnap:qts:5.1.4.2596:-:*:*:*:*:*:*
*cpe:2.3:o:qnap:qts:4.5.4.2627:-:*:*:*:*:*:*
*cpe:2.3:o:qnap:quts_hero:h4.5.4.2626:-:*:*:*:*:*:*
*cpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:* versions from (including) h5.1.0 up to (excluding) h5.1.3.2578
*cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:* versions from (including) 4.5.1 up to (excluding) 4.5.4.2627
*cpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:* versions from (including) h4.5.0 up to (excluding) h4.5.4.2626
*cpe:2.3:o:qnap:qutscloud:*:*:*:*:*:*:*:* versions from (including) c5.0.0.1919 up to (excluding) c5.1.5.2651
*cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:* versions from (including) 5.1.0 up to (excluding) 5.1.4.2596
CVE Modified by QNAP Systems, Inc.5/14/2024 10:19:04 AM
Action
Type
Old Value
New Value
New CVE Received from QNAP Systems, Inc.4/26/2024 11:15:48 AM
Action
Type
Old Value
New Value
Added
Description
A path traversal vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to read the contents of unexpected files and expose sensitive data via a network.
We have already fixed the vulnerability in the following versions:
QTS 5.1.4.2596 build 20231128 and later
QTS 4.5.4.2627 build 20231225 and later
QuTS hero h5.1.3.2578 build 20231110 and later
QuTS hero h4.5.4.2626 build 20231225 and later
QuTScloud c5.1.5.2651 and later
Added
CVSS V3.1
QNAP Systems, Inc. AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H
Added
CWE
QNAP Systems, Inc. CWE-22
Added
Reference
QNAP Systems, Inc. https://www.qnap.com/en/security-advisory/qsa-24-14 [No types assigned]
Quick Info
CVE Dictionary Entry: CVE-2023-51365 NVD
Published Date: 04/26/2024 NVD
Last Modified: 06/17/2026
Source: QNAP Systems, Inc.