Answer in brief
CVE-2021-30900 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps Apple/iOS and iPadOS (generic), Apple/iOS and iPadOS (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 and iPadOS (generic), Apple/iOS and iPadOS (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Apple/iOS and iPadOSgeneric | >=unspecified <15.1 | 15.1 |
| Apple/iOS and iPadOSgeneric | >=unspecified <14.8 | 14.8 |
Published upstream
Aug 24, 2021
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2025
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Mar 30, 2023
Evidence: source:kev:kev:kev:recordAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1. A malicious application may be able to execute arbitrary code with kernel privileges.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2021-30900 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps Apple/iOS and iPadOS (generic), Apple/iOS and iPadOS (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 and iPadOS (generic), Apple/iOS and iPadOS (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Apple/iOS and iPadOSgeneric | >=unspecified <15.1 | 15.1 |
| Apple/iOS and iPadOSgeneric | >=unspecified <14.8 | 14.8 |
Published upstream
Aug 24, 2021
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2025
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Mar 30, 2023
Evidence: source:kev:kev:kev:recordAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1. A malicious application may be able to execute arbitrary code with kernel privileges.
Quoted source text, attributed separately from HOL analysis.