What’s Vulnerable › Vulnerabilities

CVE-2018-4279

• Severity: medium (CVSS 5.3 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-04-03 · updated 2026-06-17
• Weakness: CWE-20

Description

An inconsistent user interface issue was addressed with improved state management. This issue affected versions prior to Safari 11.1.2.

Affected products

• Apple Safari: before 11.1.2 — fixed in 11.1.2

How to fix

Upgrade to a fixed version: Apple Safari 11.1.2. Check the vendor advisory for mitigations.

References

• https://support.apple.com/kb/HT208934
• https://support.apple.com/kb/HT208934

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