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CVE-2026-84609critical9.8

A permissions issue was addressed with improved path validation.

Impact

A permissions issue in Apple's iOS, iPadOS, macOS, tvOS, visionOS, and watchOS may allow an app to modify protected system files. The issue is fixed in versions 27 and later, or macOS 15.8 and later, or macOS 26.7 and later. An app may be able to exploit this weakness with local access.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

Apple · apple

iOS and iPadOS

1 range
apple version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 27

custom versions

unaffected

unknown

Other versions: unknown

Apple · apple

macOS

3 ranges
apple version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 15.8

custom versions

0 → before 26.7

custom versions

0 → before 27

custom versions

unaffected

unknown

Other versions: unknown

Apple · apple

tvOS

1 range
apple version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 27

custom versions

unaffected

unknown

Other versions: unknown

Apple · apple

visionOS

1 range
apple version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 27

custom versions

unaffected

unknown

Other versions: unknown

Apple · apple

watchOS

1 range
apple version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 27

custom versions

unaffected

unknown

Other versions: unknown

Original source description

A permissions issue was addressed with improved path validation. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. An app may be able to modify protected system files.

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-84609

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-120 ↗

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CISA-ADP

Related →
Contributing organizations · 2
apple

Assigning organization

2026-10-26
CISA-ADP

Additional data publisher

2026-09-16

What changed

Follow changes
No substantive changes have been recorded here yet. History starts when cve.new observes a change after tracking is enabled; earlier edits are not reconstructed.

Large field values are marked as truncated previews. Original source snapshots remain retained.

References

7 sources
support.apple.com/en-us/149034
Source referenceapple
support.apple.com/en-us/149035
Source referenceapple
support.apple.com/en-us/149036
Source referenceapple
support.apple.com/en-us/149037
Source referenceapple
support.apple.com/en-us/149038
Source referenceapple
support.apple.com/en-us/149042
Source referenceapple
View 1 more references
support.apple.com/en-us/149043
Source referenceapple