QNAP QTS DoS via NULL ptr in 5.2.9.3492+
CVE-2026-24716 Published on June 10, 2026
QTS, QuTS hero
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
Weakness Type
NULL Pointer Dereference
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. NULL pointer dereference issues can occur through a number of flaws, including race conditions, and simple programming omissions.
Products Associated with CVE-2026-24716
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Affected Versions
QNAP Systems Inc. QTS:- Version 5.2.0 and below 5.2.9.3492 build 20260507 is affected.
- Version h5.2.0 and below h5.2.9.3499 build 20260514 is affected.
- Version h5.3.0 and below h5.3.4.3500 build 20260520 is affected.
- Version ? and below h6.0.0.3459 build 20260409 is affected.