Is CVE-2025-58466 actively exploited?

No active exploitation of CVE-2025-58466 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-58466 be exploited remotely?

Yes. CVE-2025-58466 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-58466?

CVE-2025-58466 has a CVSS score of 4.9 (MEDIUM) and an EPSS exploitation probability of 0.13%.

HOME VULNERABILITIESCVE-2025-58466

MEDIUM

CVE-2025-58466

CWE-457Published: February 11, 2026· Updated: Feb 12, 2026

4.9

CVSS v3.1

EPSS:0.13%probability of exploitation in 30 daysPercentile:32.4th

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

NVD Source

Technical Analysis

CVE-2025-58466 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 4.9.