Vulnerability in Apple macOS

CVE-2020-27904

A logic issue existed resulting in memory corruption. This was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1. An application may be able to execute arbitrary code with kernel privileges.

EPSS: 0.031 (86.6th percentile) — read the EPSS interpretation.

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.

Affected products

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-27904?
CVE-2020-27904 is a high-severity vulnerability in Apple macOS. CVSS score: 7.8/10. Published 2020-12-08.
How severe is CVE-2020-27904?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2020-27904 known to be exploited?
4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.