What is CVE-2017-13789?

CVE-2017-13789 is a medium-severity vulnerability in Apple Safari, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2017-11-13.

How severe is CVE-2017-13789?

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

Improper input validation in Apple Safari

CVE-2017-13789

An issue was discovered in certain Apple products. Safari before 11.0.1 is affected. The issue involves the "Safari" component. It allows remote attackers to spoof the address bar via a crafted web site.

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

Published 2017-11-13 · 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:H/A:N.

EPSS exploit prediction

EPSS: 0.009 (58.7th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Apple Safari

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.securitytracker.com/id/1039706 (VDB Entry, Third Party Advisory, vdb-entry)
support.apple.com/HT208223 (Vendor Advisory)

Frequently asked questions

What is CVE-2017-13789?: CVE-2017-13789 is a medium-severity vulnerability in Apple Safari, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2017-11-13.
How severe is CVE-2017-13789?: Medium severity. CVSS v3 base score is 6.5 out of 10.