What is CVE-2016-1773?

CVE-2016-1773 is a low-severity vulnerability in Apple Mac OS X, classified under CWE-264. CVSS score: 3.3/10. Published 2016-03-24.

How severe is CVE-2016-1773?

Low severity. CVSS v3 base score is 3.3 out of 10.

Vulnerability in Apple Mac OS X

CVE-2016-1773

The code-signing subsystem in Apple OS X before 10.11.4 does not properly verify file ownership, which allows local users to determine the existence of arbitrary files via unspecified vectors.

Published 2016-03-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (22.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Apple Mac OS X

Weakness classification (CWE)

CWE-264

References

lists.apple.com/archives/security-announce/2016/Mar/msg00004.html (vendor-advisory, Vendor Advisory)
support.apple.com/HT206167 (Vendor Advisory)
www.securitytracker.com/id/1035363 (vdb-entry)

Frequently asked questions

What is CVE-2016-1773?: CVE-2016-1773 is a low-severity vulnerability in Apple Mac OS X, classified under CWE-264. CVSS score: 3.3/10. Published 2016-03-24.
How severe is CVE-2016-1773?: Low severity. CVSS v3 base score is 3.3 out of 10.