What’s Vulnerable › Vulnerabilities

CVE-2018-4089

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-04-03 · updated 2026-06-17
• Weakness: CWE-119

Description

An issue was discovered in certain Apple products. iOS before 11.2.5 is affected. macOS before 10.13.3 is affected. Safari before 11.0.3 is affected. tvOS before 11.2.5 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Affected products

• Apple TV: before 11.2.5 — fixed in 11.2.5
• Apple Iphone Os: before 11.2.5 — fixed in 11.2.5
• macOS: before 10.13.3 — fixed in 10.13.3
• Apple Safari: before 11.0.3 — fixed in 11.0.3

How to fix

Upgrade to a fixed version: Apple TV 11.2.5; Apple Iphone Os 11.2.5; macOS 10.13.3; Apple Safari 11.0.3. Check the vendor advisory for mitigations.

References

• http://www.securityfocus.com/bid/102778
• http://www.securitytracker.com/id/1040265
• http://www.securitytracker.com/id/1040266
• http://www.securitytracker.com/id/1040267
• https://support.apple.com/HT208462
• https://support.apple.com/HT208463
• https://support.apple.com/HT208465
• https://support.apple.com/HT208475
• https://www.exploit-db.com/exploits/43937/
• http://www.securityfocus.com/bid/102778
• http://www.securitytracker.com/id/1040265
• http://www.securitytracker.com/id/1040266

Get alerted when CVE-2018-4089 or the next vulnerability affects your stack