What is CVE-2021-38684?

CVE-2021-38684 is a high-severity vulnerability in QNAP Multimedia Console, classified under Out-of-bounds Write. CVSS score: 8.1/10. Published 2021-11-13.

How severe is CVE-2021-38684?

High severity. CVSS v3 base score is 8.1 out of 10.

Buffer overflow in QNAP Multimedia Console

CVE-2021-38684

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

Vulnerability class: Buffer Overflow

EPSS: 0.013 (67.1th 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 Multimedia_console — versions 1.5.2
Qnap Systems Inc. Multimedia Console — versions unspecified

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

security@qnapsecurity.com.tw (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-38684?: CVE-2021-38684 is a high-severity vulnerability in QNAP Multimedia Console, classified under Out-of-bounds Write. CVSS score: 8.1/10. Published 2021-11-13.
How severe is CVE-2021-38684?: High severity. CVSS v3 base score is 8.1 out of 10.