by Kastro
Paper/Archive/CVE-2021-1834

CVE-2021-1834

Apple macOS — An out-of-bounds write issue was addressed with improved bounds checking.

EPSS 3%CVSS 9.8
critical.is priorityof 100
47
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 87.3.873 × 2017.5No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A malicious application may be able to execute arbitrary code with kernel privileges.

Affected

ProductAffectedFixed inSource
macOSunspecified – < 11.311.3CNA
macOSunspecified – < 20212021CNA
macOSunspecified – < 20212021CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refsupport.apple.com/en-us/HT212325refsupport.apple.com/en-us/HT212326refsupport.apple.com/en-us/HT212327