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CVE-2021-30755

nvd nist
Published: Sep 8, 2021Modified: Jun 17, 2026

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6.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Exploitability: 2.8 / Impact: 3.6
Source: NVD

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. An out-of-bounds read was addressed with improved input validation.

Affected (3)

Products: Apple: Macos, Tvos, Watchos
Apple
3 products
Macos
Tvos
Watchos
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Macos
From 11.0 to 11.4
Tvos
Before 14.6
Watchos
Before 7.5

Related CWEs

CWE-125
Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.

References (6)

Source: product-security@apple.com
Vendor Advisory
Source: product-security@apple.com
Vendor Advisory
Source: product-security@apple.com
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

Timeline

No history available yet.