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CVE-2023-41273

QTS, QuTS hero, QuTScloud

HIGH
7.2
CVSS Score
Published: February 2, 2024 at 04:03 PM UTC
Updated: June 17, 2026 at 06:21 AM UTC
3 products affected across 1 vendorQTSQuTS heroQuTScloud

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Severity
HIGH7.2
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

A heap-based buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to execute code via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.2.2533 build 20230926 and later QuTS hero h5.1.2.2534 build 20230927 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%
5.1.x ≤ v < 5.1.2.2533 build 202309265.1.0.2348 build_202303255.1.0.2399 build_202305155.1.0.2418 build_202306035.1.0.2444 build_202306295.1.0.2466 build_202307215.1.1.2491 build_202308155.1.2.25335.1.x
Affected range stops below 5.1.2.2533 build 20230926, so it looks safe — our inference, not a vendor statement
QuTS hero· Qnap
95%
h5.1.x ≤ v < h5.1.2.2534 build 20230927h5.1.0.2409 build_20230525h5.1.0.2424 build_20230609h5.1.0.2453 build_20230708h5.1.0.2466 build_20230721h5.1.1.2488 build_20230812h5.1.2.2534h5.1.x
Affected range stops below h5.1.2.2534 build 20230927, so it looks safe — our inference, not a vendor statement
QuTScloud· Qnap
95%
c5.x.x ≤ v < c5.1.5.2651c5.1.0.2498 build_20230822c5.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

References (1)

Vendor Advisory
Source: [email protected]
https://www.qnap.com/en/security-advisory/qsa-23-38

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

7.2HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-120CWE-122CWE-787

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