Vulnerability Description
A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.0.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Mac Os X | < 10.15.7 |
| Apple | Macos | >= 11.0, < 11.6.1 |
References
- https://support.apple.com/en-us/HT212869Vendor Advisory
- https://support.apple.com/en-us/HT212871Vendor Advisory
- https://support.apple.com/en-us/HT212872Vendor Advisory
- https://support.apple.com/en-us/HT212869Vendor Advisory
- https://support.apple.com/en-us/HT212871Vendor Advisory
- https://support.apple.com/en-us/HT212872Vendor Advisory
FAQ
What is CVE-2021-30821?
CVE-2021-30821 is a vulnerability with a CVSS score of 7.8 (HIGH). A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.0.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious application ma...
How severe is CVE-2021-30821?
CVE-2021-30821 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-30821?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Mac Os X, Apple Macos.