CVE-2024-54506Network attack vector

Firmware code execution via out-of-bounds access

Published Dec 11, 2024 · Updated Apr 2, 2026

Out-of-bounds access in Apple's IOMobileFrameBuffer in macOS Sequoia before 15.2 allows remote attackers to execute DCP firmware code. The component accesses memory outside an undisclosed buffer boundary because its bounds checks do not adequately constrain the access. Apple has not disclosed the triggering input or access precondition; exploitation can also terminate the system unexpectedly.

CVSS severity9.8
Critical
EPSS probability0.70%
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 access in Apple's IOMobileFrameBuffer in macOS Sequoia before 15.2 allows remote attackers to execute DCP firmware code. The component accesses memory outside an undisclosed buffer boundary because its bounds checks do not adequately constrain the access. Apple has not disclosed the triggering input or access precondition; exploitation can also terminate the system unexpectedly.

The record

CVE
CVE-2024-54506
Published
Dec 11, 2024
Updated
Apr 2, 2026
Vendor
Apple
Product
macOS
Classifications
CWE-125
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 11, 2024CVE 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 <15.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · macOSversion=0 <15.2

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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.

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No observations available

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

Weakness, pattern, technique

CWE-125Out-of-bounds Read

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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