CVE-2018-19941

mediumpriority · track · 30OT risk · elevatedEPSS 0.007 · 52 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.67% (52nd) EPSS

CVSS 5 · medium

Is it mine?

6 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

A vulnerability has been reported to affect QNAP NAS. If exploited, this vulnerability allows an attacker to access sensitive information stored in cleartext inside cookies via certain widely-available tools. QNAP have already fixed this vulnerability in the following versions: QTS 4.5.1.1456 build 20201015 (and later) QuTS hero h4.5.1.1472 build 20201031 (and later) QuTScloud c4.5.2.1379 build 20200730 (and later)

cvss

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

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-312USprimaryCWE-315US

affected products (6)

Products and version ranges known to be affected.

QNAP Systems Inc. QTSunspecified → 4.5.1.1456enisa_euvdEU
QNAP Systems Inc. QuTS herounspecified → h4.5.1.1472enisa_euvdEU
QNAP Systems Inc. QuTScloudunspecified → c4.5.2.1379enisa_euvdEU
qnap qts< 4.5.1.1456nvdUScpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*
qnap quts hero< h4.5.1.1472nvdUScpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*
qnap qutscloud< c4.5.2.1379nvdUScpe:2.3:o:qnap:qutscloud:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2020-12-31modified 2026-06-17

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references (4)

External citations — patches, advisories, analysis.

scry

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