CVE-2021-30755
MEDIUM
6.5
CVSS Score
Published: September 8, 2021 at 01:45 PM UTC
Updated: June 17, 2026 at 03:50 AM UTC
3 products affected across 1 vendormacOStvOSwatchOS
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Severity
MEDIUM6.5
Exploit prediction
EPSS 1%
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
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 11.4v < 14.6v < 7.511.0 ≤ 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 (3)
CVSS
- Attack Vector
- NETWORK
- 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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