CVE-2021-30807

KEV
Published: Ott 19, 2021 Last Modified: Ott 23, 2025
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,8
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
HIGH 9,3
Source: [email protected]
Access Vector: network
Access Complexity: medium
Authentication: none
Confidentiality: complete
Integrity: complete
Availability: complete

Description

AI Translation Available

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.5.1, iOS 14.7.1 and iPadOS 14.7.1, watchOS 7.6.1. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,1740
Percentile
0,9th
Updated

EPSS Score Trend (Last 90 Days)

787

Out-of-bounds Write

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Availability Other
Potential Impacts:
Modify Memory Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Unexpected State
Applicable Platforms
Languages: Assembly, C, C++, Memory-Unsafe
Technologies: ICS/OT
Likelihood of Exploit: High
View CWE Details
Operating System

Ipados by Apple

Product Information
Vendor Apple
Product Ipados
Version Range Affected
To 14.7.1 (exclusive)
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Macos by Apple

Product Information
Vendor Apple
Product Macos
Version Range Affected
To 11.5.1 (exclusive)
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Watchos by Apple

Product Information
Vendor Apple
Product Watchos
Version Range Affected
To 7.6.1 (exclusive)
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Iphone Os by Apple

Product Information
Vendor Apple
Product Iphone Os
Version Range Affected
To 14.7.1 (exclusive)
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://www.cisa.gov/known-exploited-vulnerabilities-catalo…
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021…
https://support.apple.com/en-us/HT212622
https://support.apple.com/en-us/HT212622
https://support.apple.com/en-us/HT212623
https://support.apple.com/en-us/HT212623
https://support.apple.com/en-us/HT212713
https://support.apple.com/en-us/HT212713
https://support.apple.com/en-us/HT212622
https://support.apple.com/en-us/HT212622
https://support.apple.com/en-us/HT212623
https://support.apple.com/en-us/HT212623
https://support.apple.com/en-us/HT212713
https://support.apple.com/en-us/HT212713