Buffer overflow in QNAP Qts
CVE-2023-23363
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
Vulnerability class: Buffer Overflow
EPSS: 0.008 (51.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Qnap Qts
- Qnap Systems Inc. Qts — versions 4.3.*, 4.2.*, 4.5.*
Weakness classification (CWE)
References
- security@qnapsecurity.com.tw (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-23363?
- CVE-2023-23363 is a high-severity vulnerability in QNAP Qts, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.1/10. Published 2023-09-22.
- How severe is CVE-2023-23363?
- High severity. CVSS v3 base score is 8.1 out of 10.