CVE-2025-58466 QTS, QuTS hero
Remote administrators can exploit an uninitialized variable in QNAP OS to cause denial of service or unexpected control flow changes.
- 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-2025-58466?
CVE-2025-58466 is a low-severity vulnerability in Qnap Qts, published on 11 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A use of uninitialized variable 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 denial of service conditions, or modify control flow in unexpected ways.
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-457
Which versions are affected by CVE-2025-58466?
It affects 2 products.
Products include Qnap Qts, Qnap Quts Hero.
How do I fix CVE-2025-58466?
No fix has been published for CVE-2025-58466 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-58466 being exploited?
There is no known exploitation of CVE-2025-58466 in the wild and no public exploit code.
Other vulnerabilities in Qnap Qts
Sources
Also known as GHSA-3rgq-74p3-8xc5.