Vulnerability in Apple macOS
CVE-2021-30821
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.011 (63.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Apple macOS — versions unspecified
- Apple Mac OS X — versions 10.15.7
References
- support.apple.com/en-us/HT212869 (Vendor Advisory)
- support.apple.com/en-us/HT212871 (Vendor Advisory)
- support.apple.com/en-us/HT212872 (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-30821?
- CVE-2021-30821 is a high-severity vulnerability in Apple macOS. CVSS score: 7.8/10. Published 2021-10-28.
- How severe is CVE-2021-30821?
- High severity. CVSS v3 base score is 7.8 out of 10.