Home/CVE/A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system ver
CVE

CVE-2023-51367

A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system ver

A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to execute code via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.6.2722 build 20240402 and later QuTS hero h5.1.6.2734 build 20240414 and later.

MEDIUM · CVSS 5.4 EPSS 0.0023
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
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Weakness Classification

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-121Stack-based Buffer Overflow
▤

Affected Products & Versions

2
qnap qtsall versions
qnap quts heroall versions
▣

Scoring & Timeline

5.4
MEDIUM · CVSS v3.1 · security@qnapsecurity.com.tw
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 Sep 2024 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.qnap.com/en/security-advisory/qsa-24-20Vendor Advisory
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