Critical severity9.8NVD Advisory· Published Sep 10, 2021· Updated Jun 17, 2026
CVE-2021-34346
CVE-2021-34346
Description
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
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Affected products
3- cpe:2.3:o:qnap:nvr_storage_expansion_firmware:*:*:*:*:*:*:*:*Range: <1.0.6
- Range: >=1.0.6 (2021/08/03)
- QNAP Systems Inc./NVR Storage Expansionv5Range: unspecified
Patches
Vulnerability mechanics
References
1- www.qnap.com/en/security-advisory/qsa-21-36nvdVendor Advisory
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