CVE-2018-19945

CRITICAL

QNAP QTS 4.3.4-4.3.6 - Arbitrary File Rename via Path Traversal

Title source: llm
STIX 2.1

Description

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.

References (1)

Core 1
Core References

Scores

CVSS v3 9.1
EPSS 0.0040
EPSS Percentile 60.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Details

CWE
CWE-22 CWE-284 CWE-20 CWE-73
Status published
Products (1)
qnap/qts 4.3.4 - 4.3.4.0899
Published Dec 31, 2020
Tracked Since Feb 18, 2026