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MEDIUM · 6.0

CVE-2021-34343

A stack buffer overflow vulnerability has been reported to affect QNAP device running QTS, QuTScloud, QuTS hero. If exploited, this vulnerability allows attackers to execute arbitrary code. We have al...

Vulnerability Description

A stack buffer overflow vulnerability has been reported to affect QNAP device running QTS, QuTScloud, QuTS hero. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of QTS, QuTScloud, QuTS hero: QTS 4.5.4.1715 build 20210630 and later QTS 5.0.0.1716 build 20210701 and later QuTScloud c4.5.6.1755 and later QuTS hero h4.5.4.1771 build 20210825 and later

CVSS Score

6.0

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
HIGH

Affected Products

VendorProductVersions
QnapQts< 4.3.3.1693
QnapQuts Hero< h4.5.4.1771
QnapQutscloud< c4.5.6.1755

Related Weaknesses (CWE)

CWE-787

References

FAQ

What is CVE-2021-34343?

CVE-2021-34343 is a vulnerability with a CVSS score of 6.0 (MEDIUM). A stack buffer overflow vulnerability has been reported to affect QNAP device running QTS, QuTScloud, QuTS hero. If exploited, this vulnerability allows attackers to execute arbitrary code. We have al...

How severe is CVE-2021-34343?

CVE-2021-34343 has been rated MEDIUM with a CVSS base score of 6.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-34343?

Check the references section above for vendor advisories and patch information. Affected products include: Qnap Qts, Qnap Quts Hero, Qnap Qutscloud.