CVE-2021-30753
MEDIUM
5.5
CVSS Score
Published: September 8, 2021 at 01:45 PM UTC
Updated: June 17, 2026 at 03:50 AM UTC
5 products affected across 1 vendormacOSiPhone OSiPadOS
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.9%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 14.6
Affected range stops below 14.6, so it looks safe — our inference, not a vendor statement
v < 14.6
Affected range stops below 14.6, so it looks safe — our inference, not a vendor statement
v < 11.4v < 14.6v < 7.511.0.1 ≤ v < 11.4
Affected range stops below 11.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.5, so it looks safe — our inference, not a vendor statement
v < 14.6
Affected range stops below 14.6, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (4)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-125
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