CVE-2021-34345

A stack buffer overflow vulnerability has been reported to affect QNAP device running NVR Storage Expansion. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of NVR Storage Expansion: NVR Storage Expansion 1.0.6 ( 2021/08/03 ) and later

• CWE-787
• CWE-787

• https://www.qnap.com/en/security-advisory/qsa-21-36Vendor Advisory
• https://www.qnap.com/en/security-advisory/qsa-21-36Vendor Advisory

Published

Sep 10, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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