What’s Vulnerable › Vulnerabilities

CVE-2021-30995

• Severity: high (CVSS 7.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-08-24 · updated 2026-06-17
• Weakness: CWE-362

Description

A race condition was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.6.2, tvOS 15.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2 and iPadOS 15.2, watchOS 8.3. A malicious application may be able to elevate privileges.

Affected products

• Apple iPadOS: before 15.2 — fixed in 15.2
• Apple Iphone Os: before 15.2 — fixed in 15.2
• macOS: from 10.15 before 10.15.7; 10.15.7, 10.15.7-security_update_2020-001, 10.15.7-security_update_2021-001, 10.15.7-security_update_2021-002, 10.15.7-security_update_2021-003, 10.15.7-security_update_2021-004 (+4) — fixed in 10.15.7
• Apple macOS: from 11.0 before 11.6.2; from 12.0 before 12.1 — fixed in 11.6.2, 12.1
• Apple tvOS: before 15.2 — fixed in 15.2
• Apple watchOS: before 8.3 — fixed in 8.3

How to fix

Upgrade to a fixed version: Apple iPadOS 15.2; Apple Iphone Os 15.2; macOS 10.15.7; Apple macOS 11.6.2, 12.1; Apple tvOS 15.2; Apple watchOS 8.3. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/HT212975
• https://support.apple.com/en-us/HT212976
• https://support.apple.com/en-us/HT212978
• https://support.apple.com/en-us/HT212979
• https://support.apple.com/en-us/HT212980
• https://support.apple.com/en-us/HT212981
• https://www.zerodayinitiative.com/advisories/ZDI-22-360/
• https://support.apple.com/en-us/HT212975
• https://support.apple.com/en-us/HT212976
• https://support.apple.com/en-us/HT212978
• https://support.apple.com/en-us/HT212979
• https://support.apple.com/en-us/HT212980

Get alerted when CVE-2021-30995 or the next vulnerability affects your stack