What is CVE-2016-4685?

CVE-2016-4685 is a medium-severity vulnerability in Apple Iphone OS, classified under Inadequate Encryption Strength. CVSS score: 5.9/10. Published 2017-02-20.

How severe is CVE-2016-4685?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Apple Iphone OS

CVE-2016-4685

An issue was discovered in certain Apple products. iOS before 10.1 is affected. The issue involves the "iTunes Backup" component, which improperly hashes passwords, making it easier to decrypt files.

Published 2017-02-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (45.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Apple Iphone OS

Weakness classification (CWE)

CWE-326 — Inadequate Encryption Strength

References

support.apple.com/HT207271 (Vendor Advisory)
www.securityfocus.com/bid/94432 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2016-4685?: CVE-2016-4685 is a medium-severity vulnerability in Apple Iphone OS, classified under Inadequate Encryption Strength. CVSS score: 5.9/10. Published 2017-02-20.
How severe is CVE-2016-4685?: Medium severity. CVSS v3 base score is 5.9 out of 10.