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PatchSiren cyber security CVE debrief

CVE-2026-24716 QNAP Systems Inc. CVE debrief

CVE-2026-24716 is a NULL pointer dereference vulnerability affecting several QNAP operating system versions. A remote attacker with administrator privileges can exploit this vulnerability to launch a denial-of-service (DoS) attack. The vulnerability has been fixed in QTS 5.2.9.3492 build 20260507 and later, QuTS hero h5.2.9.3499 build 20260514 and later, QuTS hero h5.3.4.3500 build 20260520 and later, and QuTS hero h6.0.0.3459 build 20260409 and later.

Vendor
QNAP Systems Inc.
Product
QTS
CVSS
LOW 1.2
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-10
Original CVE updated
2026-06-30
Advisory published
2026-06-10
Advisory updated
2026-06-30

Who should care

Administrators of QNAP operating systems should apply the necessary patches to prevent exploitation of this vulnerability.

Technical summary

The vulnerability is caused by a NULL pointer dereference, which can be exploited by a remote attacker with administrator privileges to launch a DoS attack.

Defensive priority

Medium

Recommended defensive actions

  • Apply the patches provided by QNAP: QTS 5.2.9.3492 build 20260507 and later, QuTS hero h5.2.9.3499 build 20260514 and later, QuTS hero h5.3.4.3500 build 20260520 and later, and QuTS hero h6.0.0.3459 build 20260409 and [c

Evidence notes

The vulnerability was reported to affect several QNAP operating system versions.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-24716 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-24716

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-24716 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-24716

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.