What is CVE-2021-28800?

CVE-2021-28800 is a high-severity vulnerability in QNAP Qts, classified under OS Command Injection. CVSS score: 8.1/10. Published 2021-06-24.

How severe is CVE-2021-28800?

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

RCE in QNAP Qts

CVE-2021-28800

A command injection vulnerability has been reported to affect QNAP NAS running legacy versions of QTS. If exploited, this vulnerability allows attackers to execute arbitrary commands in a compromised application. This issue affects: QNAP Systems Inc. QTS versions prior to 4.3.6.1663 Build 20210504; versions prior to 4.3.3.1624 Build 20210416. This issue does not affect: QNAP Systems Inc. QTS 4.5.3. QNAP Systems Inc. QuTS hero h4.5.3. QNAP Systems Inc. QuTScloud c4.5.5.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.014 (70.8th 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 unspecified, 4.5.3
Qnap Systems Inc. Qutscloud — versions c4.5.5
Qnap Systems Inc. Quts Hero — versions h4.5.3

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

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

Frequently asked questions

What is CVE-2021-28800?: CVE-2021-28800 is a high-severity vulnerability in QNAP Qts, classified under OS Command Injection. CVSS score: 8.1/10. Published 2021-06-24.
How severe is CVE-2021-28800?: High severity. CVSS v3 base score is 8.1 out of 10.