What’s Vulnerable › Vulnerabilities

CVE-2021-30924

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-08-24 · updated 2026-06-17

Description

A denial of service issue was addressed with improved state handling. This issue is fixed in macOS Monterey 12.0.1. A remote attacker can cause a device to unexpectedly restart.

Affected products

• Apple iPadOS: before 15.1 — fixed in 15.1
• Apple Iphone Os: before 15.1 — fixed in 15.1
• Apple macOS: before 12.0.1 — fixed in 12.0.1
• Apple tvOS: before 15.1 — fixed in 15.1
• Apple watchOS: before 8.1 — fixed in 8.1

How to fix

Upgrade to a fixed version: Apple iPadOS 15.1; Apple Iphone Os 15.1; Apple macOS 12.0.1; Apple tvOS 15.1; Apple watchOS 8.1. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/HT212869
• https://support.apple.com/kb/HT212867
• https://support.apple.com/kb/HT212874
• https://support.apple.com/kb/HT212876
• https://support.apple.com/en-us/HT212869
• https://support.apple.com/kb/HT212867
• https://support.apple.com/kb/HT212874
• https://support.apple.com/kb/HT212876

Get alerted when CVE-2021-30924 or the next vulnerability affects your stack