A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 13.5 and iPadOS 13.5, iOS 12.4.7, watchOS 6.2.5, watchOS 5.3.7. Processing a maliciously crafted mail message may lead to heap corruption.
                
            References
                    | Link | Resource | 
|---|---|
| https://support.apple.com/HT211168 | Release Notes Vendor Advisory | 
| https://support.apple.com/HT211169 | Release Notes Vendor Advisory | 
| https://support.apple.com/HT211175 | Release Notes Vendor Advisory | 
| https://support.apple.com/HT211176 | Release Notes Vendor Advisory | 
| https://support.apple.com/HT211168 | Release Notes Vendor Advisory | 
| https://support.apple.com/HT211169 | Release Notes Vendor Advisory | 
| https://support.apple.com/HT211175 | Release Notes Vendor Advisory | 
| https://support.apple.com/HT211176 | Release Notes Vendor Advisory | 
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-9819 | US Government Resource | 
Configurations
                    Configuration 1 (hide)
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History
                    23 Oct 2025, 18:05
| Type | Values Removed | Values Added | 
|---|---|---|
| References | () https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-9819 - US Government Resource | 
22 Oct 2025, 00:17
| Type | Values Removed | Values Added | 
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| References | 
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21 Oct 2025, 20:18
| Type | Values Removed | Values Added | 
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| References | 
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21 Oct 2025, 19:18
| Type | Values Removed | Values Added | 
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| References | 
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21 Nov 2024, 05:41
| Type | Values Removed | Values Added | 
|---|---|---|
| References | () https://support.apple.com/HT211168 - Release Notes, Vendor Advisory | |
| References | () https://support.apple.com/HT211169 - Release Notes, Vendor Advisory | |
| References | () https://support.apple.com/HT211175 - Release Notes, Vendor Advisory | |
| References | () https://support.apple.com/HT211176 - Release Notes, Vendor Advisory | 
Information
                Published : 2020-06-09 17:15
Updated : 2025-10-23 18:05
NVD link : CVE-2020-9819
Mitre link : CVE-2020-9819
CVE.ORG link : CVE-2020-9819
JSON object : View
Products Affected
                apple
- iphone_os
- ipados
- watchos
CWE
                
                    
                        
                        CWE-787
                        
            Out-of-bounds Write
