VULNERABILITY INTELLIGENCE
CVE-2021-34346
CVSS score9.8 CRITICAL
EPSS probability1.58%
CISA KEVNot currently listed
Published2021-09-10
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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
Weakness classification
- security@qnapsecurity.com.tw: CWE-787
- nvd@nist.gov: CWE-787
Primary references
- security@qnapsecurity.com.tw — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory