Vulnerability Intelligence Report
Apple iOS, iPadOS, and macOS Type Confusion Vulnerability
CVE-2021-30869
A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 12.5.5, iOS 14.4 and iPadOS 14.4, macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, Security Update 2021-006 Catalina. A malicious application may be able to execute arbitrary code with kernel privileges. Apple is aware of reports that an exploit for this issue exists in the wild.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
7.8
HIGH
Exploitability:1.9
Impact Score:5.9
EPSS Probability:4.15%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-843 ↗CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Apple | iOS and iPadOS | unspecified < 14.4 (affected) |
| Apple | macOS | unspecified < 11.2 (affected) |
| Apple | macOS | unspecified < 12.5 (affected) |
| Apple | macOS | unspecified < 2021 (affected) |
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
EPSS Score
4.150%
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Apple Inc. · Vendor · USA |
| Reserved | 2021-04-13T00:00:00 |
| Published | 2021-08-24T18:49:34 |
| Last Updated | 2025-10-21T23:25:36 |
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