CVE-2021-30783

6.5 mediumEPSS 0.3%

Medium (6.5) in apple. EPSS 0.3% chance of exploitation in the next 30 days.

An access issue was addressed with improved access restrictions. This issue is fixed in macOS Big Sur 11.5, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave. A sandboxed process may be able to circumvent sandbox restrictions.

Severity

CVSS 3.1

6.5 medium

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 27% of CVEs (scores of 2026-10-31)
Published: 2021-09-08
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

apple:mac_os_x
apple:macos

References

http://seclists.org/fulldisclosure/2021/Sep/40
https://support.apple.com/en-us/HT212600
https://support.apple.com/en-us/HT212602
https://support.apple.com/en-us/HT212603
https://support.apple.com/kb/HT212805

Check your stack JSON