What is CVE-2018-18571?

CVE-2018-18571 is a critical-severity vulnerability in Citrix Xenmobile Server, classified under Improper Authentication. CVSS score: 9.1/10. Published 2019-06-05.

How severe is CVE-2018-18571?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Citrix Xenmobile Server

CVE-2018-18571

An Incorrect Access Control vulnerability has been identified in Citrix XenMobile Server 10.8.0 before Rolling Patch 6 and 10.9.0 before Rolling Patch 3. An attacker can impersonate and take actions on behalf of any Mobile Application Management (MAM) enrolled device.

Vulnerability class: Broken Authentication

Published 2019-06-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.026 (84.7th percentile), scored 2026-09-30.

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: 0.026 · newest: 0.026 · change: 0.000

Affected products

Citrix Xenmobile Server — versions 10.8.0, 10.9.0

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

www.securityfocus.com/bid/108081 (VDB Entry, Third Party Advisory, vdb-entry)
support.citrix.com/article/CTX247736 (Vendor Advisory)

Frequently asked questions

What is CVE-2018-18571?: CVE-2018-18571 is a critical-severity vulnerability in Citrix Xenmobile Server, classified under Improper Authentication. CVSS score: 9.1/10. Published 2019-06-05.
How severe is CVE-2018-18571?: Critical severity. CVSS v3 base score is 9.1 out of 10.