CVE-2025-59386

mediumpriority · track · 20EPSS 0.004 · 37 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.43% (37th) EPSS

CVSS 4.9 · medium

Is it mine?

8 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-28

A NULL pointer dereference 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 launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following version: QuTS hero h5.3.2.3354 build 20251225 and later

cvss

Technical severity, 0–10. One row per scoring source.

4.9

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.2–4.9

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 1.2 · impact 3.6

v4.01.2lowCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:Usecondary · ENISA EU

v4.01.2lowCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · security@qnapsecurity.com.tw

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-476US

affected products (8)

Products and version ranges known to be affected.

QNAP NAS QuTS hero <h5.3.2.3354 build 20251225all versionscert_bundDE
QNAP NAS≤ QuTS hero <h5.3.2.3354 build 20251225cert_bundDE
QNAP Systems Inc. QuTS heroh5.3.x → h5.3.2.3354 build 20251225enisa_euvdEU
qnap quts hero= h5.3.0.3115nvdUScpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*
qnap quts hero= h5.3.0.3145nvdUScpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*
qnap quts hero= h5.3.0.3192nvdUScpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*
qnap quts hero= h5.3.1.3250nvdUScpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*
qnap quts hero= h5.3.1.3292nvdUScpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-0399QNAP NAS QTS und QuTS hero: Mehrere SchwachstellenDeutsch2026-02-11csaf · cert_bundDE
Ein entfernter, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in QNAP NAS ausnutzen, um einen Denial of Service Angriff durchzuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen oder Daten zu manipulieren.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2026-02-11modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

scry

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