What is CVE-2016-7580?

CVE-2016-7580 is a medium-severity vulnerability in Apple Mac OS X, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2017-02-20.

How severe is CVE-2016-7580?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Improper input validation in Apple Mac OS X

CVE-2016-7580

An issue was discovered in certain Apple products. macOS before 10.12 is affected. The issue involves the "Mail" component, which allows remote web servers to cause a denial of service via a crafted URL.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

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

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.008 (56.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Apple Mac OS X

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.securityfocus.com/bid/94434 (VDB Entry, Third Party Advisory, vdb-entry)
support.apple.com/HT207170 (Vendor Advisory)

Frequently asked questions

What is CVE-2016-7580?: CVE-2016-7580 is a medium-severity vulnerability in Apple Mac OS X, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2017-02-20.
How severe is CVE-2016-7580?: Medium severity. CVSS v3 base score is 6.5 out of 10.