What’s Vulnerable › Vulnerabilities

CVE-2021-30871

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-08-24 · updated 2026-06-17

Description

This issue was addressed with a new entitlement. This issue is fixed in iOS 14.7, watchOS 7.6, macOS Big Sur 11.5. A local attacker may be able to access analytics data.

Affected products

• Apple Iphone Os: before 14.7 — fixed in 14.7
• Apple macOS: before 11.5 — fixed in 11.5
• Apple watchOS: before 7.6 — fixed in 7.6

How to fix

Upgrade to a fixed version: Apple Iphone Os 14.7; Apple macOS 11.5; Apple watchOS 7.6. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/HT212601
• https://support.apple.com/en-us/HT212602
• https://support.apple.com/en-us/HT212605
• https://support.apple.com/en-us/HT212601
• https://support.apple.com/en-us/HT212602
• https://support.apple.com/en-us/HT212605

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