What is CVE-2021-34344?

CVE-2021-34344 is a critical-severity vulnerability in Qnap Qts, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2021-09-10.

How severe is CVE-2021-34344?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Qnap Qts

CVE-2021-34344

A stack buffer overflow vulnerability has been reported to affect QNAP device running QUSBCam2. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions…

Vulnerability class: Buffer Overflow

EPSS: 0.015 (71.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Qnap Qts — versions 4.3.6, 4.5.4
Qnap Qusbcam2
Qnap Quts_hero — versions h4.5.3
Qnap Systems Inc. Qusbcam2 — 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-2021-34344?: CVE-2021-34344 is a critical-severity vulnerability in Qnap Qts, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2021-09-10.
How severe is CVE-2021-34344?: Critical severity. CVSS v3 base score is 9.8 out of 10.