Name: CVE-2018-19945: Improper Input Validation
Creator: Rapid7
Published: 2020-12-31T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2018-19945, CWE-20, CWE-22, CWE-73, CWE-284, CVSS 9.1, EPSS 0.00399

A vulnerability has been reported to affect earlier QNAP devices running QTS 4.3.4 to 4.3.6. Caused by improper limitations of a pathname to a restricted directory, this vulnerability allows for renaming arbitrary files on the target system, if exploited. QNAP have already fixed this vulnerability in the following versions: QTS 4.3.6.0895 build 20190328 (and later) QTS 4.3.4.0899 build 20190322 (and later) This issue does not affect QTS 4.4.x or QTS 4.5.x.

CVSS Details

CVSS 3.1 Base Score: 9.1
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Qnap Qts	—	Upgrade QNAP QTS to the latest version	Aug 4, 2025	Dec 30, 2020

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CVSS Details

Covered by Rapid7

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