CISA ADP Vulnrichment

Answer in brief

CVE-2026-28896 records a Unknown severity vulnerability in CISA ADP Vulnrichment. The current sources do not mark it as known exploited. The current feed maps Apple/iOS and iPadOS (generic), Apple/macOS (generic), Apple/tvOS (generic), Apple/visionOS (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 27, 2026Updated Aug 21, 2026Source checked Aug 21, 2026First seen by HOL Aug 21, 2026Material review Aug 21, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 5 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. 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.

Affected scope and exposure questions

The current feed maps Apple/iOS and iPadOS (generic), Apple/macOS (generic), Apple/tvOS (generic), Apple/visionOS (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Apple/iOS and iPadOSgeneric	>=0 <26.4	26.4
Apple/macOSgeneric	>=0 <14.8.8 \|\| >=0 <15.7.8 \|\| >=0 <26.4	14.8.8, 15.7.8, 26.4
Apple/tvOSgeneric	>=0 <26.4	26.4
Apple/visionOSgeneric	>=0 <26.4	26.4
Apple/watchOSgeneric	>=0 <26.4	26.4

Recommended response

Check inventory. Check lockfiles and deployed manifests for Apple/iOS and iPadOS, Apple/macOS, Apple/tvOS.
Review the reported fix. Update Apple/iOS and iPadOS to 26.4; Apple/macOS to 14.8.8; Apple/tvOS to 26.4; Apple/visionOS to 26.4; Apple/watchOS to 26.4 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Jul 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 21, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 21, 2026

Sources and claim methodology

Upstream source description

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. An attacker may be able to cause unexpected system termination or read kernel memory.

Quoted source text, attributed separately from HOL analysis.