CVE-2023-51364

QTS, QuTS hero, QuTScloud

HIGH

7.5

CVSS Score

Published: April 26, 2024 at 03:01 PM UTC

Updated: June 17, 2026 at 06:40 AM UTC

3 products affected across 1 vendorQTSQuTS heroQuTScloud

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Severity

HIGH7.5

Exploit prediction

EPSS 40%

SSVC

No known exploit

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

QTS · Qnap

95%

4.5.1 ≤ v < 4.5.4.26274.5.x ≤ v < 4.5.4.2627 build 202312255.1.0 ≤ v < 5.1.4.25965.1.x ≤ v < 5.1.4.2596 build 202311284.5.4.2627 4.5.x 5.1.4.2596 5.1.x

Affected range stops below 4.5.4.2627 build 20231225, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.1.4.2596 build 20231128, so it looks safe — our inference, not a vendor statement

QuTS hero · Qnap

95%

h4.5.0 ≤ v < h4.5.4.2626h4.5.x ≤ v < h4.5.4.2626 build 20231225h5.1.0 ≤ v < h5.1.3.2578h5.1.x ≤ v < h5.1.3.2578 build 20231110h4.5.4.2626 h4.5.x h5.1.3.2578 h5.1.x

Affected range stops below h4.5.4.2626 build 20231225, so it looks safe — our inference, not a vendor statement

Affected range stops below h5.1.3.2578 build 20231110, so it looks safe — our inference, not a vendor statement

QuTScloud · Qnap

95%

c5.0.0.1919 ≤ v < c5.1.5.2651c5.x.x ≤ v < c5.1.5.2651c5.x.x

Affected range stops below c5.1.5.2651, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://www.qnap.com/en/security-advisory/qsa-24-14

References (1)

Vendor Advisory

Source: [email protected]

https://www.qnap.com/en/security-advisory/qsa-24-14

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusANALYZED

CWE

CWE-22

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