CVE-2021-44056

highpriority · track · 39EPSS 0.009 · 60 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.93% (60th) EPSS

CVSS 10 · high

Is it mine?

9 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

An improper authentication vulnerability has been reported to affect QNAP device running Video Station. If exploited, this vulnerability allows attackers to compromise the security of the system. We have already fixed this vulnerability in the following versions of Video Station: Video Station 5.5.9 and later Video Station 5.3.13 and later Video Station 5.1.8 and later

cvss

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

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.1–10

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 10 · impact 10

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:Nsecondary · ENISA EU

v3.17.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:Nsecondary · security@qnapsecurity.com.twexploitability 2.8 · impact 4.2

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USprimaryCWE-287US

affected products (9)

Products and version ranges known to be affected.

QNAP Systems Inc. Video Stationunspecified → 5.1.8enisa_euvdEU
QNAP Systems Inc. Video Stationunspecified → 5.3.13enisa_euvdEU
QNAP Systems Inc. Video Stationunspecified → 5.5.9enisa_euvdEU
QNAP Systems, Inc. Video Station≤ 5.1.8fstec_bduRU
QNAP Systems, Inc. Video Station5.2.0 → 5.3.13fstec_bduRU
QNAP Systems, Inc. Video Station5.4.0 → 5.5.9fstec_bduRU
qnap video station< 5.1.8nvdUScpe:2.3:a:qnap:video_station:*:*:*:*:*:*:*:*
qnap video station5.2.0 → 5.3.13nvdUScpe:2.3:a:qnap:video_station:*:*:*:*:*:*:*:*
qnap video station5.4.0 → 5.5.9nvdUScpe:2.3:a:qnap:video_station:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2022-05-05modified 2026-06-17

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+7709 more

references (5)

External citations — patches, advisories, analysis.

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