Vulnerability Description
A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause unexpected application termination or arbitrary code execution.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Ipad Os | < 14.4 |
| Apple | Iphone Os | < 14.4 |
| Apple | Mac Os X | >= 10.14, < 10.14.6 |
| Apple | Macos | >= 11.0, < 11.2 |
| Apple | Tvos | < 14.4 |
| Apple | Watchos | < 7.3 |
References
- https://support.apple.com/en-us/HT212146Vendor Advisory
- https://support.apple.com/en-us/HT212147Vendor Advisory
- https://support.apple.com/en-us/HT212148Vendor Advisory
- https://support.apple.com/en-us/HT212149Vendor Advisory
- https://support.apple.com/en-us/HT212146Vendor Advisory
- https://support.apple.com/en-us/HT212147Vendor Advisory
- https://support.apple.com/en-us/HT212148Vendor Advisory
- https://support.apple.com/en-us/HT212149Vendor Advisory
FAQ
What is CVE-2021-1818?
CVE-2021-1818 is a vulnerability with a CVSS score of 9.8 (CRITICAL). A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 1...
How severe is CVE-2021-1818?
CVE-2021-1818 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2021-1818?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Ipad Os, Apple Iphone Os, Apple Mac Os X, Apple Macos, Apple Tvos.