What is CVE-2017-7637?

CVE-2017-7637 is a critical-severity vulnerability in QNAP Nas Proxy Server, classified under OS Command Injection. CVSS score: 9.8/10. Published 2018-06-05.

How severe is CVE-2017-7637?

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

RCE in QNAP Nas Proxy Server

CVE-2017-7637

QNAP NAS application Proxy Server through version 1.2.0 allows remote attackers to run arbitrary OS commands against the system with root privileges.

Vulnerability class: Command Injection (OS Command Injection)

Published 2018-06-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.031 (87.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.031 · newest: 0.031 · change: 0.000

Affected products

QNAP Nas Proxy Server

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

www.qnap.com/en/security-advisory/nas-201806-01 (Vendor Advisory)
www.securitytracker.com/id/1041025 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2017-7637?: CVE-2017-7637 is a critical-severity vulnerability in QNAP Nas Proxy Server, classified under OS Command Injection. CVSS score: 9.8/10. Published 2018-06-05.
How severe is CVE-2017-7637?: Critical severity. CVSS v3 base score is 9.8 out of 10.