Back to Database
Status published
High
CVE-2021-30876
An out-of-bounds read was addressed with improved bounds checking. This...
Vulnerability Description
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.0.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. Processing a maliciously crafted AppleScript binary may result in unexpected application termination or disclosure of process memory.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-30876
Credits & Attribution
No credits recorded in the NVD database.
References
More from Apple
View All →CVE-2025-46316
An out-of-bounds read was addressed with improved input validation. This...
Unknown
0
CVE-2025-46315
A permissions issue was addressed with additional restrictions. This issue...
Unknown
0
CVE-2025-46313
A logging issue was addressed with improved data redaction. This...
Unknown
0
CVE-2025-46311
An inconsistent user interface issue was addressed with improved state...
Unknown
0
CVE-2025-46310
This issue was addressed through improved state management. This issue...
Unknown
0
Affected Vendor
Apple
View all reports →Affected Software
macOS
Vulnerable Versions:
unspecified
Timeline
Official Publish:
August 24th, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.