CVE-2020-9831

5.5 mediumEPSS 0.7%

Medium (5.5) in apple mac os x. EPSS 0.7% chance of exploitation in the next 30 days.

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Catalina 10.15.5. A malicious application may be able to determine kernel memory layout.

Severity

CVSS 3.1

5.5 medium

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

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 53% of CVEs (scores of 2026-10-31)
CWE: CWE-125
Published: 2020-06-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

apple:mac_os_x

References

https://support.apple.com/HT211170
https://support.apple.com/HT211170

Check your stack JSON