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TI-2026-19928 Aliases CVE-2026-24716GHSA-9vf8-xh83-h327

NULL pointer dereference in QNAP QTS

Priority LOW 8CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
Low · None · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-476.

Summary

A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: 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 QuTS hero h6.0.0.3459 build 20260409 and later

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00331 26th percentileScored 2026-11-07
Fix Fixed QTS (QNAP Systems Inc.): 5.2.9.3492 build 20260507QuTS hero (QNAP Systems Inc.): h5.2.9.3499 build 20260514, h5.3.4.3500 build 20260520, h6.0.0.3459 build 20260409

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
QNAPQTS5.2.0 to before 5.2.9.3492 build 202605075.2.9.3492 build 20260507Patch availableCNA
QNAPQuTS heroh5.2.0 to before h5.2.9.3499 build 20260514; h5.3.0 to before h5.3.4.3500 build 20260520; ? to before h6.0.0.3459 build 20260409h5.2.9.3499 build 20260514, h5.3.4.3500 build 20260520, h6.0.0.3459 build 20260409Patch availableCNA
  • QTS VendorQNAP Affected 5.2.0 to before 5.2.9.3492 build 20260507 Fixed in 5.2.9.3492 build 20260507 Patch available CNA
  • QuTS hero VendorQNAP Affected h5.2.0 to before h5.2.9.3499 build 20260514; h5.3.0 to before h5.3.4.3500 build 20260520; ? to before h6.0.0.3459 build 20260409 Fixed in h5.2.9.3499 build 20260514, h5.3.4.3500 build 20260520, h6.0.0.3459 build 20260409 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*5.2.0.2737 to before 5.2.9.3492VulnerableQNAP
cpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*h5.0.0 to before h5.2.9.3499; h5.3.0.3115 to before h5.3.4.3500; h6.0.0.3324 to before h6.0.0.3459VulnerableQNAP
  • cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:* Versions 5.2.0.2737 to before 5.2.9.3492 Vulnerable ·QNAP
  • cpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:* Versions h5.0.0 to before h5.2.9.3499; h5.3.0.3115 to before h5.3.4.3500; h6.0.0.3324 to before h6.0.0.3459 Vulnerable ·QNAP

Remediation

  • Fix · CNA QTS (QNAP Systems Inc.) Fixed in 5.2.9.3492 build 20260507
  • Fix · CNA QuTS hero (QNAP Systems Inc.) Fixed in h5.2.9.3499 build 20260514, h5.3.4.3500 build 20260520, h6.0.0.3459 build 20260409

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    QNAP Systems QTS 5.2.9.3492 build 20260507

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    Show all 3 records →
  • Release ·

    QNAP Systems QuTS hero h5.2.9.3499 build 20260514, h5.3.4.3500 build 20260520, h6.0.0.3459 build 20260409

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-24716
  2. 2026-10-03 Alias added: GHSA-9vf8-xh83-h327

References

Other 1

  • TI-2020-02221 Command Injection Vulnerability in QTS and QuTS hero KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05101 Improper input validation in QNAP NAS devices KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-14137 Improper input validation in QNAP QTS KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-14131 Cross-site scripting in QNAP QTS KEVCVSS 3.1HIGH 8.0
See all 282 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences