CVE-2021-34343mediumCWE-787

CVE-2021-34343: medium-severity vulnerability in QNAP Systems Inc. QTS

Buffer Overflow Vulnerability in QTS, QuTS hero, and QuTScloud

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6epss 1.9%
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:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
Affected products
QNAP Systems Inc. · QTSQNAP Systems Inc. · QuTScloudQNAP Systems Inc. · QuTS hero
Related CVEs — QNAP Systems Inc. QTS

In the same product, most dangerous first.

CVE-2020-2509CRITICALCommand Injection Vulnerability in QTS and QuTS heroEPSS 34.0%KEVCVE-2018-19953MEDIUMCVE-2018-19953EPSS 30.5%KEVCVE-2018-19949CRITICALCVE-2018-19949EPSS 30.2%KEVCVE-2018-19943HIGHCVE-2018-19943EPSS 22.7%KEVCVE-2023-47218MEDIUMQTS, QuTS hero, QuTScloudEPSS 89.9%CVE-2023-51364HIGHQTS, QuTS hero, QuTScloudEPSS 39.7%