CVE-2026-84507

System crash or kernel corruption via race condition

Published Sep 14, 2026 · Updated Sep 14, 2026

Race condition in Apple operating systems before their listed fixes allows local users to crash the system or corrupt kernel memory via an app. Apple has not disclosed the affected component or the precise state transition that permits concurrent app activity to reach invalid kernel memory. Execution of a local app is required; successful triggering can terminate the device or corrupt kernel memory, with no published evidence of code execution.

CVSS severityUnavailable
Unscored
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in Apple operating systems before their listed fixes allows local users to crash the system or corrupt kernel memory via an app. Apple has not disclosed the affected component or the precise state transition that permits concurrent app activity to reach invalid kernel memory. Execution of a local app is required; successful triggering can terminate the device or corrupt kernel memory, with no published evidence of code execution.

The record

CVE
CVE-2026-84507
Published
Sep 14, 2026
Updated
Sep 14, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
Unavailable
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <26.7
  2. Affected versionversion=0 <27

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Apple · iOS and iPadOSversion=0 <26.7; version=0 <27
Apple · visionOSversion=0 <27
Apple · tvOSversion=0 <27
Apple · macOSversion=0 <15.8; version=0 <26.7; version=0 <27
Apple · watchOSversion=0 <27

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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