CVE-2024-54522

Coprocessor memory corruption via insufficient bounds checks

Published Jan 27, 2025 · Updated Apr 2, 2026

Out-of-bounds write in iOS, iPadOS and tvOS before 18.2, macOS before 15.2 and watchOS before 11.2 lets local users corrupt coprocessor memory. IOMobileFrameBuffer accepts app-controlled data without adequate bounds validation, allowing a write beyond the intended coprocessor-memory boundary. A locally installed app with low privileges and no user interaction is required; Apple has not disclosed the specific call or data structure involved.

CVSS severity7.8
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in iOS, iPadOS and tvOS before 18.2, macOS before 15.2 and watchOS before 11.2 lets local users corrupt coprocessor memory. IOMobileFrameBuffer accepts app-controlled data without adequate bounds validation, allowing a write beyond the intended coprocessor-memory boundary. A locally installed app with low privileges and no user interaction is required; Apple has not disclosed the specific call or data structure involved.

The record

CVE
CVE-2024-54522
Published
Jan 27, 2025
Updated
Apr 2, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-787
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 27, 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 <18.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Apple · iOS and iPadOSversion=0 <18.2
Apple · tvOSversion=0 <18.2
Apple · macOSversion=0 <15.2
Apple · watchOSversion=0 <11.2

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write

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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