What is CVE-2020-25847?

CVE-2020-25847 is a high-severity vulnerability in QNAP Qts, classified under Command Injection. CVSS score: 8.8/10. Published 2020-12-29.

How severe is CVE-2020-25847?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in QNAP Qts

CVE-2020-25847

This command injection vulnerability allows attackers to execute arbitrary commands in a compromised application. QNAP have already fixed this vulnerability in the following versions of QTS and QuTS hero.

Vulnerability class: Command Injection (OS Command Injection)

Published 2020-12-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.026 (84.7th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.025 · newest: 0.026 · change: +0.000

Affected products

QNAP Qts
QNAP Quts Hero
QNAP Systems Inc. Qts — versions unspecified, 4.3.x, 4.2.x
QNAP Systems Inc. Quts Hero — versions unspecified

Weakness classification (CWE)

References

www.qnap.com/en/security-advisory/qsa-20-20 (Vendor Advisory)

Frequently asked questions

What is CVE-2020-25847?: CVE-2020-25847 is a high-severity vulnerability in QNAP Qts, classified under Command Injection. CVSS score: 8.8/10. Published 2020-12-29.
How severe is CVE-2020-25847?: High severity. CVSS v3 base score is 8.8 out of 10.