An out-of-bounds write was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.5, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave. An application may be able to execute arbitrary code with kernel privileges.
Published 2021-09-08 14:15:10
Updated 2021-09-16 13:39:37
Source Apple Inc.
View at NVD,   CVE.org
Vulnerability category: Memory CorruptionExecute code

Exploit prediction scoring system (EPSS) score for CVE-2021-30765

Probability of exploitation activity in the next 30 days: 0.09%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 35 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-30765

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
9.3
HIGH AV:N/AC:M/Au:N/C:C/I:C/A:C
8.6
10.0
nvd@nist.gov
7.8
HIGH CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
1.8
5.9
nvd@nist.gov

CWE ids for CVE-2021-30765

  • The product writes data past the end, or before the beginning, of the intended buffer.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-30765

Products affected by CVE-2021-30765

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