Findings

CVE-2025-44013

A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions.

Published Jan 2, 2026 · updated Oct 14, 2026 · qnap quts hero

A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user 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 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and later

Timeline

Detection, updates, and resolution for this record.

  1. Jan 2, 2026 · NIST NVD

    Detected

    A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user 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 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and later

  2. Oct 14, 2026 · NIST NVD

    Updated

    A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user 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 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and later

Affected

  • cpe qnap/qts5.2.0.2737
  • cpe qnap/quts heroh5.2.0.2737
  • cpe qnap/quts heroh5.2.0.2782
  • cpe qnap/quts heroh5.2.0.2789
  • cpe qnap/quts heroh5.2.0.2802
  • cpe qnap/quts heroh5.2.0.2823
  • cpe qnap/quts heroh5.2.0.2851
  • cpe qnap/quts heroh5.2.0.2860
  • cpe qnap/quts heroh5.2.1.2929

Sources

  • CVE.orgCVE-2025-44013

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2025-44013

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDCVE-2025-44013

    A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in

    nvd.nist.gov

References