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CVE-2020-2509

Known Exploited (CISA KEV)CRITICAL
9.8
CVSS Severity Score
EPSS Score29.6990%
EPSS Percentile94.58th
PublishedApr 17, 2021
Last ModifiedOct 27, 2025

Vulnerability Description

A command injection vulnerability has been reported to affect QTS and QuTS hero. If exploited, this vulnerability allows attackers to execute arbitrary commands in a compromised application. We have already fixed this vulnerability in the following versions: QTS 4.5.2.1566 Build 20210202 and later QTS 4.5.1.1495 Build 20201123 and later QTS 4.3.6.1620 Build 20210322 and later QTS 4.3.4.1632 Build 20210324 and later QTS 4.3.3.1624 Build 20210416 and later QTS 4.2.6 Build 20210327 and later QuTS hero h4.5.1.1491 build 20201119 and later

Affected Platforms (CPE)

πŸ’»
Qnap

Qts

< 4.2.6
πŸ’»
Qnap

Qts

>= 4.3.5 and < 4.3.6
πŸ’»
Qnap

Qts

>= 4.4.0 and < 4.5.1
πŸ’»
Qnap

Qts

= 4.2.6
πŸ’»
Qnap

Qts

= 4.2.6
πŸ’»
Qnap

Qts

= 4.2.6
πŸ’»
Qnap

Qts

= 4.2.6
πŸ’»
Qnap

Qts

= 4.2.6
πŸ’»
Qnap

Qts

= 4.2.6
πŸ’»
Qnap

Qts

= 4.2.6
πŸ’»
Qnap

Qts

= 4.2.6
πŸ’»
Qnap

Qts

= 4.2.6
πŸ’»
Qnap

Qts

= 4.2.6
πŸ’»
Qnap

Qts

= 4.3.3.0174
πŸ’»
Qnap

Qts

= 4.3.3.0868
πŸ’»
Qnap

Qts

= 4.3.3.0998
πŸ’»
Qnap

Qts

= 4.3.3.1051
πŸ’»
Qnap

Qts

= 4.3.3.1098
πŸ’»
Qnap

Qts

= 4.3.3.1161
πŸ’»
Qnap

Qts

= 4.3.3.1252
πŸ’»
Qnap

Qts

= 4.3.3.1315
πŸ’»
Qnap

Qts

= 4.3.3.1386
πŸ’»
Qnap

Qts

= 4.3.3.1432
πŸ’»
Qnap

Qts

= 4.3.4.0358
πŸ’»
Qnap

Qts

= 4.3.4.0358
πŸ’»
Qnap

Qts

= 4.3.4.0370
πŸ’»
Qnap

Qts

= 4.3.4.0370
πŸ’»
Qnap

Qts

= 4.3.4.0372
πŸ’»
Qnap

Qts

= 4.3.4.0372
πŸ’»
Qnap

Qts

= 4.3.4.0374
πŸ’»
Qnap

Qts

= 4.3.4.0374
πŸ’»
Qnap

Qts

= 4.3.4.0387
πŸ’»
Qnap

Qts

= 4.3.4.0387
πŸ’»
Qnap

Qts

= 4.3.4.0411
πŸ’»
Qnap

Qts

= 4.3.4.0416
πŸ’»
Qnap

Qts

= 4.3.4.0427
πŸ’»
Qnap

Qts

= 4.3.4.0434
πŸ’»
Qnap

Qts

= 4.3.4.0435
πŸ’»
Qnap

Qts

= 4.3.4.0451
πŸ’»
Qnap

Qts

= 4.3.4.0483
πŸ’»
Qnap

Qts

= 4.3.4.0486
πŸ’»
Qnap

Qts

= 4.3.4.0506
πŸ’»
Qnap

Qts

= 4.3.4.0516
πŸ’»
Qnap

Qts

= 4.3.4.0526
πŸ’»
Qnap

Qts

= 4.3.4.0551
πŸ’»
Qnap

Qts

= 4.3.4.0557
πŸ’»
Qnap

Qts

= 4.3.4.0561
πŸ’»
Qnap

Qts

= 4.3.4.0569
πŸ’»
Qnap

Qts

= 4.3.4.0593
πŸ’»
Qnap

Qts

= 4.3.4.0597
πŸ’»
Qnap

Qts

= 4.3.4.0604
πŸ’»
Qnap

Qts

= 4.3.4.0899
πŸ’»
Qnap

Qts

= 4.3.4.1029
πŸ’»
Qnap

Qts

= 4.3.4.1082
πŸ’»
Qnap

Qts

= 4.3.4.1190
πŸ’»
Qnap

Qts

= 4.3.4.1282
πŸ’»
Qnap

Qts

= 4.3.4.1368
πŸ’»
Qnap

Qts

= 4.3.4.1417
πŸ’»
Qnap

Qts

= 4.3.4.1463
πŸ’»
Qnap

Qts

= 4.3.6
πŸ’»
Qnap

Qts

= 4.3.6.0895
πŸ’»
Qnap

Qts

= 4.3.6.0907
πŸ’»
Qnap

Qts

= 4.3.6.0923
πŸ’»
Qnap

Qts

= 4.3.6.0944
πŸ’»
Qnap

Qts

= 4.3.6.0959
πŸ’»
Qnap

Qts

= 4.3.6.0979
πŸ’»
Qnap

Qts

= 4.3.6.0993
πŸ’»
Qnap

Qts

= 4.3.6.1013
πŸ’»
Qnap

Qts

= 4.3.6.1033
πŸ’»
Qnap

Qts

= 4.3.6.1070
πŸ’»
Qnap

Qts

= 4.3.6.1154
πŸ’»
Qnap

Qts

= 4.3.6.1218
πŸ’»
Qnap

Qts

= 4.3.6.1263
πŸ’»
Qnap

Qts

= 4.3.6.1286
πŸ’»
Qnap

Qts

= 4.3.6.1333
πŸ’»
Qnap

Qts

= 4.3.6.1411
πŸ’»
Qnap

Qts

= 4.3.6.1446
πŸ’»
Qnap

Qts

= 4.5.1
πŸ’»
Qnap

Qts

= 4.5.1.1456
πŸ’»
Qnap

Qts

= 4.5.1.1461
πŸ’»
Qnap

Qts

= 4.5.1.1465
πŸ’»
Qnap

Qts

= 4.5.1.1480
πŸ’»
Qnap

Qts

= 4.5.2
πŸ’»
Qnap

Quts Hero

< h4.5.1
πŸ’»
Qnap

Quts Hero

= h4.5.1
πŸ’»
Qnap

Quts Hero

= h4.5.1.1472

References & Advisories

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