CVE-2021-34346

Stack Based Overflow Vulnerability in NVR Storage Expansion

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

Remediation

Solution:

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

References

Link	Tags
https://www.qnap.com/en/security-advisory/qsa-21-36	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-34346?: CVE-2021-34346 has been scored as a critical severity vulnerability.
How to fix CVE-2021-34346?: To fix CVE-2021-34346: 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
Is CVE-2021-34346 being actively exploited in the wild?: It is possible that CVE-2021-34346 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-34346?: CVE-2021-34346 affects QNAP Systems Inc. NVR Storage Expansion.

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Description

Remediation

Category

CWE-787 – Out-of-bounds Write

References

Frequently Asked Questions