CVE-2021-30859
Apple Security Advisory 2021-09-20-8
Severity Score
7.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, Security Update 2021-005 Catalina. A malicious application may be able to execute arbitrary code with kernel privileges.
Se abordó un problema de confusión de tipos con una administración de estado mejorada. Este problema se corrigió en iOS versión 14.8 y iPadOS versión 14.8, macOS Big Sur versión 11.6, Security Update 2021-005 Catalina. Una aplicación maliciosa puede ser capaz de ejecutar código arbitrario con privilegios del kernel
macOS Big Sur 11.6 addresses buffer overflow, bypass, code execution, denial of service, integer overflow, out of bounds read, and use-after-free vulnerabilities.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-04-13 CVE Reserved
- 2021-08-24 CVE Published
- 2024-08-03 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')
CAPEC
References (3)
| URL | Tag | Source |
|---|---|---|
| https://support.apple.com/en-us/HT212804 | X_refsource_misc |
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| https://support.apple.com/en-us/HT212805 | X_refsource_misc |
|
| https://support.apple.com/en-us/HT212807 | X_refsource_misc |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
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| URL | Date | SRC |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Apple Search vendor "Apple" | Ipados Search vendor "Apple" for product "Ipados" | < 14.8 Search vendor "Apple" for product "Ipados" and version " < 14.8" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Iphone Os Search vendor "Apple" for product "Iphone Os" | < 14.8 Search vendor "Apple" for product "Iphone Os" and version " < 14.8" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | < 10.15.7 Search vendor "Apple" for product "Mac Os X" and version " < 10.15.7" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | security_update_2020-001 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | security_update_2021-001 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | security_update_2021-002 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | security_update_2021-003 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | security_update_2021-004 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | supplemental_update |
Affected
| ||||||
| Apple Search vendor "Apple" | Macos Search vendor "Apple" for product "Macos" | >= 11.0 < 11.6 Search vendor "Apple" for product "Macos" and version " >= 11.0 < 11.6" | - |
Affected
| ||||||