What is CVE-2016-5566?

CVE-2016-5566 is a medium-severity vulnerability in Oracle Solaris, classified under Improper Access Control. CVSS score: 5.3/10. Published 2016-10-25.

How severe is CVE-2016-5566?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Oracle Solaris

CVE-2016-5566

Unspecified vulnerability in Oracle Sun Solaris 11.3 allows remote attackers to affect confidentiality via unknown vectors.

Published 2016-10-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.018 (78.2th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.2% 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

Oracle Solaris — versions 11.3

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

www.securitytracker.com/id/1037048 (vdb-entry)
www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html (Patch, Vendor Advisory)
www.securityfocus.com/bid/93749 (vdb-entry)

Frequently asked questions

What is CVE-2016-5566?: CVE-2016-5566 is a medium-severity vulnerability in Oracle Solaris, classified under Improper Access Control. CVSS score: 5.3/10. Published 2016-10-25.
How severe is CVE-2016-5566?: Medium severity. CVSS v3 base score is 5.3 out of 10.