Critical severity · published Sep 22, 2023
CVE-2023-23363
A buffer copy without checking size of input vulnerability has been reported to affect QNAP operating system
9.8
CVSS
0.9%
EPSS
No
On KEV
Description
A buffer copy without checking size of input vulnerability has been reported to affect QNAP operating system. If exploited, the vulnerability possibly allows remote users to execute code via unspecified vectors.
We have already fixed the vulnerability in the following versions:
QTS 4.3.6.2441 build 20230621 and later
QTS 4.3.3.2420 build 20230621 and later
QTS 4.2.6 build 20230621 and later
QTS 4.3.4.2451 build 20230621 and later
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QT
Qts · Qnap
4.3.3 before 4.3.3.2420; 4.3.4 before 4.3.4.245; 4.3.6 before 4.3.6.2441 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-23363
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-23363
Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-23-25
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