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TI-2021-16255 Aliases CVE-2021-38684GHSA-r9m4-448x-8fg7

Buffer Overflow Vulnerability in Multimedia Console

Priority MEDIUM 45CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

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

Why it matters now

EPSS 0.01323 71st percentileScored 2026-11-07
Fix Fixed Multimedia Console (QNAP Systems Inc.): 1.4.3 ( 2021/10/05 ), 1.5.3 ( 2021/10/05 )

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
QNAPMultimedia Consolebefore 1.4.3 ( 2021/10/05 ); before 1.5.3 ( 2021/10/05 )1.4.3 ( 2021/10/05 ), 1.5.3 ( 2021/10/05 )Patch availableCNA
  • Multimedia Console VendorQNAP Affected before 1.4.3 ( 2021/10/05 ); before 1.5.3 ( 2021/10/05 ) Fixed in 1.4.3 ( 2021/10/05 ), 1.5.3 ( 2021/10/05 ) Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:qnap:multimedia_console:*:*:*:*:*:*:*:*before 1.4.3VulnerableQNAP
cpe:2.3:a:qnap:multimedia_console:1.5.2:*:*:*:*:*:*:*1.5.2VulnerableQNAP
  • cpe:2.3:a:qnap:multimedia_console:*:*:*:*:*:*:*:* Versions before 1.4.3 Vulnerable ·QNAP
  • cpe:2.3:a:qnap:multimedia_console:1.5.2:*:*:*:*:*:*:* Versions 1.5.2 Vulnerable ·QNAP

Remediation

  • Fix · CNA Multimedia Console (QNAP Systems Inc.) Fixed in 1.4.3 ( 2021/10/05 ), 1.5.3 ( 2021/10/05 )

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-38684
  2. 2026-10-03 Alias added: GHSA-r9m4-448x-8fg7

References

Advisory 1

  • TI-2023-09215 Command injection in QNAP Multimedia Console CVSS 3.1CRITICAL 9.8
  • TI-2020-18515 SQL Injection Vulnerability in Multimedia Console and the Media Streaming Add-On CVSS 3.1CRITICAL 9.8
  • TI-2023-09210 Buffer overflow in QNAP Multimedia Console CVSS 3.1CRITICAL 9.8
  • TI-2020-02205 Cross-site Scripting Vulnerability in Multimedia Console CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences