CVE-2025-48730 QTS, QuTS hero

Medium 5.1 Published Updated

Remote administrators can exploit a format string vulnerability in QNAP operating systems to read secret data or modify memory.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-48730?

CVE-2025-48730 is a medium-severity vulnerability in Qnap Qts, published on 3 Oct 2025. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A use of externally-controlled format string 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 obtain secret data or modify memory.

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

Weakness: CWE-134

Which versions are affected by CVE-2025-48730?

It affects 2 products.

Products include Qnap Qts, Qnap Quts Hero.

How do I fix CVE-2025-48730?

No fix has been published for CVE-2025-48730 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-48730 being exploited?

There is no known exploitation of CVE-2025-48730 in the wild and no public exploit code.

All Qnap Qts vulnerabilities

Sources

Also known as GHSA-8hvh-qhmm-fwfr.

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