CVE-2024-40854

System termination via improper GPU memory initialization

Published Jan 15, 2025 · Updated Apr 2, 2026

Memory initialization flaw in Apple GPU Drivers on affected iOS, iPadOS, and macOS releases allows local apps to terminate the system. Apple discloses only that GPU Drivers handle initialized memory improperly; no lower-level code locus or triggering input is public. Execution of an app on the device is required, and the documented consequence is unexpected system termination without disclosed data exposure or code execution.

CVSS severity5.5
Medium
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory initialization flaw in Apple GPU Drivers on affected iOS, iPadOS, and macOS releases allows local apps to terminate the system. Apple discloses only that GPU Drivers handle initialized memory improperly; no lower-level code locus or triggering input is public. Execution of an app on the device is required, and the documented consequence is unexpected system termination without disclosed data exposure or code execution.

The record

CVE
CVE-2024-40854
Published
Jan 15, 2025
Updated
Apr 2, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
T1529
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 2, 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 <17.7.1
  2. Affected versionversion=0 <18.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=0 <17.7.1; version=0 <18.1
Apple · macOSversion=0 <13.7.1; version=0 <14.7.1; version=0 <15.1

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
5.5NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1529System Shutdown/Reboot

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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