CVE-2021-38684 json
Buffer Overflow Vulnerability in Multimedia Console
published 2021-11-13 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-25123
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 71%
- public exploits
- 0
- none known
Summary
A stack buffer overflow vulnerability has been reported to affect QNAP NAS running Multimedia Console. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of Multimedia Console: Multimedia Console 1.4.3 ( 2021/10/05 ) and later Multimedia Console 1.5.3 ( 2021/10/05 ) and later
Patch / fix
- QNAP Systems Inc. Multimedia Console 1.4.3 ( 2021/10/05 ), 1.5.3 ( 2021/10/05 )
Exploit prediction
1.32% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- QNAP Systems Inc. Multimedia Console
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
qnap.com
/en/security-advisory/qsa-21-45
vendor-advisory
Sources
- CVE List CVE-2021-38684
- NVD CVE-2021-38684
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