CVE-2021-30663

KEV
Published: Set 08, 2021 Last Modified: Ott 23, 2025
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
MEDIUM 6,8
Source: [email protected]
Access Vector: network
Access Complexity: medium
Authentication: none
Confidentiality: partial
Integrity: partial
Availability: partial

Description

AI Translation Available

An integer overflow was addressed with improved input validation. This issue is fixed in iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, Safari 14.1.1, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution.

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
0,0111
Percentile
0,8th
Updated

EPSS Score Trend (Last 90 Days)

190

Integer Overflow or Wraparound

Stable
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Integrity Confidentiality Access Control Other
Potential Impacts:
Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Memory) Dos: Instability Modify Memory Execute Unauthorized Code Or Commands Bypass Protection Mechanism Alter Execution Logic Dos: Resource Consumption (Cpu)
Applicable Platforms
Languages: C, Not Language-Specific
Likelihood of Exploit: Medium
View CWE Details
Operating System

Macos by Apple

Product Information
Vendor Apple
Product Macos
Version Range Affected
From 11.0 (inclusive)
To 11.3.1 (exclusive)
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ipados by Apple

Product Information
Vendor Apple
Product Ipados
Version Range Affected
From 14.0 (inclusive)
To 14.5.1 (exclusive)
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Iphone Os by Apple

Product Information
Vendor Apple
Product Iphone Os
Version Range Affected
To 12.5.3 (exclusive)
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Tvos by Apple

Product Information
Vendor Apple
Product Tvos
Version Range Affected
To 14.6 (exclusive)
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Iphone Os by Apple

Product Information
Vendor Apple
Product Iphone Os
Version Range Affected
From 14.0 (inclusive)
To 14.5.1 (exclusive)
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Safari by Apple

Product Information
Vendor Apple
Product Safari
Version Range Affected
To 14.1.1 (exclusive)
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
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/HT212335
https://support.apple.com/en-us/HT212335
https://support.apple.com/en-us/HT212336
https://support.apple.com/en-us/HT212336
https://support.apple.com/en-us/HT212341
https://support.apple.com/en-us/HT212341
https://support.apple.com/en-us/HT212532
https://support.apple.com/en-us/HT212532
https://support.apple.com/en-us/HT212534
https://support.apple.com/en-us/HT212534
https://support.apple.com/en-us/HT212335
https://support.apple.com/en-us/HT212335
https://support.apple.com/en-us/HT212336
https://support.apple.com/en-us/HT212336
https://support.apple.com/en-us/HT212341
https://support.apple.com/en-us/HT212341
https://support.apple.com/en-us/HT212532
https://support.apple.com/en-us/HT212532
https://support.apple.com/en-us/HT212534
https://support.apple.com/en-us/HT212534