CVE-2021-30719

7.1 highEPSS 0.3%

High (7.1) in apple. EPSS 0.3% chance of exploitation in the next 30 days.

A local user may be able to cause unexpected system termination or read kernel memory. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina. An out-of-bounds read issue was addressed by removing the vulnerable code.

Severity

CVSS 3.1

7.1 high

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 20% of CVEs (scores of 2026-10-31)
CWE: CWE-125
Published: 2021-09-08
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

apple:mac_os_x
apple:macos

References

https://support.apple.com/en-us/HT212529
https://support.apple.com/en-us/HT212530
https://support.apple.com/en-us/HT212529
https://support.apple.com/en-us/HT212530

Check your stack JSON