Back to Database
Status published
Medium
CVE-2021-30831
An out-of-bounds read was addressed with improved input validation. This...
Vulnerability Description
An out-of-bounds read was addressed with improved input validation. This issue is fixed in tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Processing a maliciously crafted font may result in the 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-2021-30831
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
iOS and iPadOS, tvOS, watchOS
Vulnerable Versions:
unspecified
Timeline
Official Publish:
October 28th, 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:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.