CVE-2025-59380 QTS, QuTS hero

Medium 4.6 Published Updated

Remote administrators can exploit a path traversal flaw in QNAP operating systems to read unexpected files or system data.

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-2025-59380?

CVE-2025-59380 is a medium-severity path traversal vulnerability in Qnap Qts, published on 2 Jan 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A path traversal 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 read the contents of unexpected files or system data.

We have already fixed the vulnerability in the following versions: QTS 5.2.8.3332 build 20251128 and later QuTS hero h5.2.8.3321 build 20251117 and later

Weakness: CWE-22

Which versions are affected by CVE-2025-59380?

It affects 2 products.

Products include Qnap Qts, Qnap Quts Hero.

How do I fix CVE-2025-59380?

No fix has been published for CVE-2025-59380 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2025-59380 being exploited?

There is no known exploitation of CVE-2025-59380 in the wild and no public exploit code.

All Qnap Qts vulnerabilities

Sources

Also known as GHSA-74xj-22j3-mfhw.

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