CVE-2021-30698
HIGH
7.5
CVSS Score
Published: September 8, 2021 at 02:28 PM UTC
Updated: June 17, 2026 at 03:50 AM UTC
4 products affected across 1 vendormacOSiPhone OSiPadOS
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Severity
HIGH7.5
Exploit prediction
EPSS 2%
Description
A null pointer dereference was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.4, Safari 14.1.1, iOS 14.6 and iPadOS 14.6. A remote attacker may be able to cause a denial of service.
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 < 14.111.0 ≤ v < 11.4
Affected range stops below 11.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1, 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
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-476
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