CVE-2021-30753

medium

Description

Processing a maliciously crafted font may result in the disclosure of process memory. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. An out-of-bounds read was addressed with improved input validation.

References

https://support.apple.com/en-us/HT212533

https://support.apple.com/en-us/HT212532

https://support.apple.com/en-us/HT212529

https://support.apple.com/en-us/HT212528

Details

Source: Mitre, NVD

Published: 2021-09-08

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.5

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