What is CVE-2016-5302?

CVE-2016-5302 is a critical-severity vulnerability in Citrix Xenserver, classified under Improper Access Control. CVSS score: 9.8/10. Published 2016-06-13.

How severe is CVE-2016-5302?

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

Vulnerability in Citrix Xenserver

CVE-2016-5302

Citrix XenServer 7.0 before Hotfix XS70E003, when a deployment has been upgraded from an earlier release, might allow remote attackers on the management network to "compromise" a host by leveraging credentials for an Active Directory account.

Published 2016-06-13 · 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: 0.026 (84.5th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.5% 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 Xenserver

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

support.citrix.com/article/CTX213769
www.securitytracker.com/id/1036082 (vdb-entry)
support.citrix.com/article/CTX213549 (Vendor Advisory)

Frequently asked questions

What is CVE-2016-5302?: CVE-2016-5302 is a critical-severity vulnerability in Citrix Xenserver, classified under Improper Access Control. CVSS score: 9.8/10. Published 2016-06-13.
How severe is CVE-2016-5302?: Critical severity. CVSS v3 base score is 9.8 out of 10.