What’s Vulnerable › Vulnerabilities

CVE-2017-13905

• Severity: high (CVSS 8.1 v3.1)
• 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: 2021-12-23 · updated 2026-06-17
• Weakness: CWE-362

Description

A race condition was addressed with additional validation. This issue is fixed in tvOS 11.2, iOS 11.2, macOS High Sierra 10.13.2, Security Update 2017-002 Sierra, and Security Update 2017-005 El Capitan, watchOS 4.2. An application may be able to gain elevated privileges.

Affected products

• Apple Iphone Os: before 11.2 — fixed in 11.2
• macOS: from 10.11 before 10.11.6; from 10.12 before 10.12.6; 10.11.6, 10.11.6-security_update_2016-001, 10.11.6-security_update_2016-002, 10.11.6-security_update_2016-003, 10.11.6-security_update_2017-001, 10.11.6-security_update_2017-002 (+4) — fixed in 10.11.6, 10.12.6
• Apple macOS: before 10.13.2 — fixed in 10.13.2
• Apple tvOS: before 11.2 — fixed in 11.2
• Apple watchOS: before 4.2 — fixed in 4.2

How to fix

Upgrade to a fixed version: Apple Iphone Os 11.2; macOS 10.11.6, 10.12.6; Apple macOS 10.13.2; Apple tvOS 11.2; Apple watchOS 4.2. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/HT208325
• https://support.apple.com/en-us/HT208327
• https://support.apple.com/en-us/HT208331
• https://support.apple.com/en-us/HT208334
• https://support.apple.com/en-us/HT208325
• https://support.apple.com/en-us/HT208327
• https://support.apple.com/en-us/HT208331
• https://support.apple.com/en-us/HT208334

Get alerted when CVE-2017-13905 or the next vulnerability affects your stack