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CVE-2020-2509

QNAP — QNAP Network-Attached Storage (NAS) Command Injection Vulnerability

QNAP · CWE-77 | CWE-78 — Operating system command injection · in CISA KEV since 2022-04-11

KEV since 2022 · listed over a yearCISA KEVActively Exploited
75

EVRS 75 of 100 Urgent

Patch This Cycle

Rank 799 of 2,960 tracked

Raised to the floor for a confirmed exploited vulnerability.

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Why it scores 75

Evidence available: 6 of 7 signals

Listed in the CISA KEV catalog, and an EPSS probability of 0.340.

  • CISA KEVApplied
  • RansomwareDid not apply
  • Vendor exploitationDid not apply
  • EPSSApplied
  • Microsoft Exploitability IndexNot applicable
  • Pre-patch disclosureNo data
  • KEV recencyDid not apply
  • CVSSApplied

The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data

Fix

Patch or fixed version identified

CISA required action

Fixed in

qts: update to 4.2.6 or later | qts: update to 4.3.6 or later | qts: update to 4.5.1 or later | quts hero: update to h4.5.1 or later

Affected versions

  • qts< 4.2.6>= 4.3.5 < 4.3.6>= 4.4.0 < 4.5.14.2.64.3.3.01744.3.3.08684.3.3.09984.3.3.10514.3.3.10984.3.3.11614.3.3.12524.3.3.13154.3.3.13864.3.3.14324.3.4.03584.3.4.03704.3.4.03724.3.4.03744.3.4.03874.3.4.04114.3.4.04164.3.4.04274.3.4.04344.3.4.04354.3.4.04514.3.4.04834.3.4.04864.3.4.05064.3.4.05164.3.4.05264.3.4.05514.3.4.05574.3.4.05614.3.4.05694.3.4.05934.3.4.05974.3.4.06044.3.4.08994.3.4.10294.3.4.10824.3.4.11904.3.4.12824.3.4.13684.3.4.14174.3.4.14634.3.64.3.6.08954.3.6.09074.3.6.09234.3.6.09444.3.6.09594.3.6.09794.3.6.09934.3.6.10134.3.6.10334.3.6.10704.3.6.11544.3.6.12184.3.6.12634.3.6.12864.3.6.13334.3.6.14114.3.6.14464.5.14.5.1.14564.5.1.14614.5.1.14654.5.1.14804.5.2
  • quts hero< h4.5.1h4.5.1h4.5.1.1472

Remediation

Apply updates per vendor instructions.

Fixed versions from NVD.

Evidence

Each value with its source
MeasureValueSource
CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. 9.8 NVD
FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. 0.340 (98.4th pctl) FIRST EPSS
Actively exploitedWhether a source of record has confirmed attacks using it in the wild. Confirmed CISA KEV
Ransomware campaign useWhether CISA has seen ransomware operators use it. Unknown or none CISA KEV
CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. 2022-05-02 · KEV since 2022 · listed over a year CISA KEV
Public exploit moduleA module existing is not the same as active exploitation. None known Metasploit
EUVD cross-referenceENISA's record: CVSS 9.8 (v3.1), assigned by qnap. Listed ENISA EUVD

Description

NVD

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

What CISA says to do