CVE-2018-4274

Name: CVE-2018-4274
Creator: NVD / NIST
Published: 2019-04-03T18:29:04.907+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.83%

Last modified Jun 17, 2026

CVE-2018-4274 is a vulnerability of currently unknown severity. A spoofing issue existed in the handling of URLs. This issue was addressed with improved input validation. EPSS estimates a 0.83% chance of exploitation in the next 30 days.

Description

A spoofing issue existed in the handling of URLs. This issue was addressed with improved input validation. This issue affected versions prior to iOS 11.4.1, Safari 11.1.2.

Metrics

EPSS Probability

0.83%

52.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Apple	Safari	< 11.1.2
Apple	Iphone Os	< 11.4.1

References

https://support.apple.com/kb/HT208934Vendor Advisory
https://support.apple.com/kb/HT208938Vendor Advisory
https://support.apple.com/kb/HT208934Vendor Advisory
https://support.apple.com/kb/HT208938Vendor Advisory

Timeline

Published: Apr 3, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-4274?

A spoofing issue existed in the handling of URLs. This issue was addressed with improved input validation. This issue affected versions prior to iOS 11.4.1, Safari 11.1.2.

How severe is CVE-2018-4274?

Severity scoring for CVE-2018-4274 is pending analysis. The EPSS model estimates a 0.83% probability of exploitation in the next 30 days.

How do I fix CVE-2018-4274?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-4274?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST