What is CVE-2018-18471?

CVE-2018-18471 is a critical-severity vulnerability in Axentra Hipserv, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.8/10. Published 2019-06-19.

How severe is CVE-2018-18471?

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

XXE in Axentra Hipserv

CVE-2018-18471

/api/2.0/rest/aggregator/xml in Axentra firmware, used by NETGEAR Stora, Seagate GoFlex Home, and MEDION LifeCloud, has an XXE vulnerability that can be chained with an SSRF bug to gain remote command execution as root. It can be triggered by anyone who knows the IP address of the affected device.

Vulnerability class: XXE (XML External Entity)

Published 2019-06-19 · 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: 0.077 (94.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.077 · newest: 0.077 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

www.axentra.com/en/ (URL Repurposed, Vendor Advisory)
www.wizcase.com/blog/hack-2018/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-18471?: CVE-2018-18471 is a critical-severity vulnerability in Axentra Hipserv, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.8/10. Published 2019-06-19.
How severe is CVE-2018-18471?: Critical severity. CVSS v3 base score is 9.8 out of 10.