QNAP QTS/QuTS Hero Null Pointer DoS (pre 5.3.1.3292)
CVE-2025-62848 Published on December 16, 2025
QTS, QuTS hero
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to launch a denial-of-service (DoS) attack.
We have already fixed the vulnerability in the following versions:
QTS 5.2.7.3297 build 20251024 and later
QuTS hero h5.2.7.3297 build 20251024 and later
QuTS hero h5.3.1.3292 build 20251024 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-2025-62848
You can be notified by email with stack.watch whenever vulnerabilities like CVE-2025-62848 are published in these products:
Affected Versions
QNAP Systems Inc. QTS:- Version 5.2.x and below 5.2.7.3297 build 20251024 is affected.
- Version h5.2.x and below h5.2.7.3297 build 20251024 is affected.
- Version h5.3.x and below h5.3.1.3292 build 20251024 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.