Answer in brief
CVE-2020-9819 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps Apple/iOS (generic), Apple/iOS-1 (generic), Apple/watchOS (generic), Apple/watchOS-1 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Apple/iOS (generic), Apple/iOS-1 (generic), Apple/watchOS (generic), Apple/watchOS-1 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Apple/iOSgeneric | >=unspecified <iOS 13.5 and iPadOS 13.5 | iOS 13.5 and iPadOS 13.5 |
| Apple/iOS-1generic | >=unspecified <iOS 12.4.7 | iOS 12.4.7 |
| Apple/watchOSgeneric | >=unspecified <watchOS 6.2.5 | watchOS 6.2.5 |
| Apple/watchOS-1generic | >=unspecified <watchOS 5.3.7 | watchOS 5.3.7 |
Published upstream
Jun 9, 2020
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Dec 20, 2025
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Nov 3, 2021
Evidence: source:kev:kev:kev:recordA 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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2020-9819 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps Apple/iOS (generic), Apple/iOS-1 (generic), Apple/watchOS (generic), Apple/watchOS-1 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Apple/iOS (generic), Apple/iOS-1 (generic), Apple/watchOS (generic), Apple/watchOS-1 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Apple/iOSgeneric | >=unspecified <iOS 13.5 and iPadOS 13.5 | iOS 13.5 and iPadOS 13.5 |
| Apple/iOS-1generic | >=unspecified <iOS 12.4.7 | iOS 12.4.7 |
| Apple/watchOSgeneric | >=unspecified <watchOS 6.2.5 | watchOS 6.2.5 |
| Apple/watchOS-1generic | >=unspecified <watchOS 5.3.7 | watchOS 5.3.7 |
Published upstream
Jun 9, 2020
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Dec 20, 2025
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Nov 3, 2021
Evidence: source:kev:kev:kev:recordA 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.
Quoted source text, attributed separately from HOL analysis.