CVE-2021-34346
Published: 10 September 2021
Summary
CVE-2021-34346 is a critical-severity Out-of-bounds Write (CWE-787) vulnerability in Qnap Nvr Storage Expansion Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 27.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-21006
Vulnerability details
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:…
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NVR Storage Expansion 1.0.6 ( 2021/08/03 ) and later
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.