CVE-2021-34343
6.0 · MEDIUMOverview
CVE-2021-34343 is a medium-severity vulnerability affecting qnap qts. It was published on September 10, 2021 and has a CVSS 3.1 base score of 6.0 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.0, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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
Remediation
Check the references section for vendor advisories and patches from qnap. Update qts to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| qnap | qts | >= 0, < 4.3.3.1693 | Affected |
| qnap | quts_hero | >= 0, < h4.5.4.1771 | Affected |
| qnap | qutscloud | >= 0, < c4.5.6.1755 | Affected |
Frequently Asked Questions
What is CVE-2021-34343?
CVE-2021-34343 is a medium-severity vulnerability affecting qnap qts. It was published on September 10, 2021 and has a CVSS 3.1 base score of 6.0 (MEDIUM).
How severe is CVE-2021-34343?
This vulnerability has a CVSS 3.1 base score of 6.0, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-34343?
Check the references section for vendor advisories and patches from qnap. Update qts to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-34343?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-34343 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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