CVE-2026-84552

System crash from local app execution

Published Sep 14, 2026 · Updated Sep 14, 2026

Memory handling in Apple iOS and iPadOS before 26.7 or 27 and macOS before 15.8, 26.7, or 27 allows an app to crash the system. Apple has not published the affected component, the memory-safety defect, or the operation performed incorrectly on untrusted input. Exploitation requires an app to run on the device; the reported consequence is a system crash, with no disclosed data access or code execution.

CVSS severityUnavailable
Unscored
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory handling in Apple iOS and iPadOS before 26.7 or 27 and macOS before 15.8, 26.7, or 27 allows an app to crash the system. Apple has not published the affected component, the memory-safety defect, or the operation performed incorrectly on untrusted input. Exploitation requires an app to run on the device; the reported consequence is a system crash, with no disclosed data access or code execution.

The record

CVE
CVE-2026-84552
Published
Sep 14, 2026
Updated
Sep 14, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
T1499
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 · macOSversion=0 <15.8; version=0 <26.7; version=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

T1499Endpoint Denial of Service

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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