What is CVE-2020-2508?

CVE-2020-2508 is a high-severity vulnerability in QNAP Qts, classified under Command Injection. CVSS score: 7.2/10. Published 2021-01-11.

How severe is CVE-2020-2508?

High severity. CVSS v3 base score is 7.2 out of 10.

RCE in QNAP Qts

CVE-2020-2508

A command injection vulnerability has been reported to affect QTS and QuTS hero. If exploited, this vulnerability allows attackers to execute arbitrary commands in a compromised application. QNAP have already fixed this vulnerability in the following versions: QTS 4.5.1.1456 build 20201015 (and later) QuTS hero h4.5.1.1472 build 20201031 (and later)

Vulnerability class: Command Injection (OS Command Injection)

Published 2021-01-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.018 (78.1th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

QNAP Qts
QNAP Quts Hero
QNAP Systems Inc. Qts — versions < 4.5.1.1456
QNAP Systems Inc. Quts Hero — versions < h4.5.1.1472

Weakness classification (CWE)

References

www.qnap.com/zh-tw/security-advisory/qsa-21-01 (Vendor Advisory)

Frequently asked questions

What is CVE-2020-2508?: CVE-2020-2508 is a high-severity vulnerability in QNAP Qts, classified under Command Injection. CVSS score: 7.2/10. Published 2021-01-11.
How severe is CVE-2020-2508?: High severity. CVSS v3 base score is 7.2 out of 10.