CVE-2021-30869 (GCVE-0-2021-30869)
Vulnerability from cvelistv5 – Published: 2021-08-24 18:49 – Updated: 2025-10-21 23:25
VLAI?
CISA KEV
Summary
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.
Severity ?
7.8 (High)
CWE
- 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.
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Impacted products
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: e08f07ab-17c4-415e-84fb-b9b898a9e689
Exploited: Yes
Timestamps
First Seen: 2021-11-03
Asserted: 2021-11-03
Scope
Notes: KEV entry: Apple iOS, iPadOS, and macOS Type Confusion Vulnerability | Affected: Apple / iOS, iPadOS, and macOS | Description: Apple iOS, iPadOS, and macOS contain a type confusion vulnerability in the XNU which may allow a malicious application to execute code with kernel privileges. | Required action: Apply updates per vendor instructions. | Due date: 2021-11-17 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2021-30869
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-843 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | iOS, iPadOS, and macOS |
| Due Date | 2021-11-17 |
| Date Added | 2021-11-03 |
| Vendorproject | Apple |
| Vulnerabilityname | Apple iOS, iPadOS, and macOS Type Confusion Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Created: 2026-02-02 12:28 UTC
| Updated: 2026-02-02 12:28 UTC
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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