What is CVE-2016-4754?

CVE-2016-4754 is a high-severity vulnerability in Apple OS X Server, classified under Cryptographic Issues. CVSS score: 7.5/10. Published 2016-09-25.

How severe is CVE-2016-4754?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Apple OS X Server

CVE-2016-4754

ServerDocs Server in Apple OS X Server before 5.2 supports the RC4 cipher, which might allow remote attackers to defeat cryptographic protection mechanisms via unspecified vectors.

Vulnerability class: POODLE (CVE-2014-3566)

Published 2016-09-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.020 (79.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000

Affected products

Apple OS X Server

Weakness classification (CWE)

CWE-310 — Cryptographic Issues

References

support.apple.com/HT207171 (Vendor Advisory)
www.securitytracker.com/id/1036853 (vdb-entry)
www.securityfocus.com/bid/93061 (vdb-entry)
lists.apple.com/archives/security-announce/2016/Sep/msg00009.html (vendor-advisory, Mailing List, Vendor Advisory)

Frequently asked questions

What is CVE-2016-4754?: CVE-2016-4754 is a high-severity vulnerability in Apple OS X Server, classified under Cryptographic Issues. CVSS score: 7.5/10. Published 2016-09-25.
How severe is CVE-2016-4754?: High severity. CVSS v3 base score is 7.5 out of 10.