What’s Vulnerable › Vulnerabilities

CVE-2017-13873

• Severity: medium (CVSS 4.3 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-04-03 · updated 2026-06-17
• Weakness: CWE-200

Description

An issue was discovered in certain Apple products. iOS before 11 is affected. macOS before 10.13 is affected. tvOS before 11 is affected. watchOS before 4 is affected. The issue involves the "Kernel" component. It allows attackers to obtain sensitive network-activity information about arbitrary apps via a crafted app.

Affected products

• Apple Iphone Os: before 11.0 — fixed in 11.0
• macOS: before 10.13 — fixed in 10.13
• Apple tvOS: before 11.0 — fixed in 11.0
• Apple watchOS: before 4.0 — fixed in 4.0

How to fix

Upgrade to a fixed version: Apple Iphone Os 11.0; macOS 10.13; Apple tvOS 11.0; Apple watchOS 4.0. Check the vendor advisory for mitigations.

References

• https://support.apple.com/HT208112
• https://support.apple.com/HT208113
• https://support.apple.com/HT208115
• https://support.apple.com/HT208144
• https://support.apple.com/HT208112
• https://support.apple.com/HT208113
• https://support.apple.com/HT208115
• https://support.apple.com/HT208144

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