CVE-2018-0721 | BDVDB-2026-109784 Detail

QNAP SystemsQTS

Description#

Buffer Overflow vulnerability in NAS devices. QTS allows attackers to run arbitrary code. This issue affects: QNAP Systems Inc. QTS version 4.2.6 and prior versions on build 20180711; version 4.3.3 and prior versions on build 20180725; version 4.3.4 and prior versions on build 20180710.

Impact#

Per CVSS v3.1: confidentiality impact low, integrity impact high, availability impact low. Attack vector: network.

Weaknesses#

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

References#

https://www.qnap.com/zh-tw/security-advisory/nas-201809-20

Exploit#

No public exploit known

History#

Version 12018-11-27Record published in the CVE List.
Version 22024-08-05Most recent update recorded in the CVE List.

Published

Published: 2018-11-27
Last modified: 2024-08-05

Vendor information

Vendor: QNAP Systems
Product: QTS

All QNAP Systems vulnerabilities

Score

7.7 High

EPSS

1.5%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 75.3.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Memory Corruption

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
<= 4.2.6
Fixed
Not stated
Vulnerable
<= 4.3.3
Fixed
Not stated
Vulnerable
<= 4.3.4
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.7 High

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:L

Metric breakdown
Attack Vector	Network
Attack Complexity	High
Privileges Required	Low
User Interaction	None
Scope	Changed
Confidentiality	Low
Integrity	High
Availability	Low

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).