CVE-2021-38684

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

A stack buffer overflow vulnerability has been reported to affect QNAP NAS running Multimedia Console. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of Multimedia Console: Multimedia Console 1.4.3 ( 2021/10/05 ) and later Multimedia Console 1.5.3 ( 2021/10/05 ) and later

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

VendorProductVersions
QNAP Systems Inc.Multimedia Console>= unspecified, < 1.4.3 ( 2021/10/05 ); >= unspecified, < 1.5.3 ( 2021/10/05 )

References

Timeline

Published
Nov 13, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-38684: Critical severity, CVSS 9.8 | Vulnix