CVE-2020-9921

7.0 highEPSS 0.2%

High (7.0) in apple mac os x. EPSS 0.2% chance of exploitation in the next 30 days.

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.6. A malicious application may be able to execute arbitrary code with system privileges.

Severity

CVSS 3.1

7.0 high

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 13% of CVEs (scores of 2026-10-31)
CWEs: CWE-367, CWE-787
Published: 2020-10-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

apple:mac_os_x

References

https://support.apple.com/kb/HT211289
https://support.apple.com/kb/HT211289

Check your stack JSON