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

CVE-2023-41277

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 authenticated administrators to execute code via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.2.2533 build 20230926 and later QuTS hero h5.1.2.2534 build 20230927 and later QuTScloud c5.1.5.2651 and later.

MEDIUM · CVSS 5.5 EPSS 0.00048
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

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

Affected Products & Versions

3
qnap qtsall versions
qnap quts heroall versions
qnap qutscloudall versions
▣

Scoring & Timeline

5.5
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 NVD02 Feb 2024 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
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-23-38Vendor Advisory
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