CVE-2025-30437

Coprocessor memory corruption via inadequate bounds checks

Published Mar 31, 2025 · Updated Apr 2, 2026

Memory corruption in IOMobileFrameBuffer in Apple macOS Sequoia before 15.4 allows attackers to corrupt coprocessor memory through an app. Apple attributes the flaw to inadequate bounds checks but has not disclosed the affected routine, buffer, or incorrect operation. Execution of an app on the Mac is required; published material does not establish code execution or a broader system compromise.

CVSS severity7.4
High
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in IOMobileFrameBuffer in Apple macOS Sequoia before 15.4 allows attackers to corrupt coprocessor memory through an app. Apple attributes the flaw to inadequate bounds checks but has not disclosed the affected routine, buffer, or incorrect operation. Execution of an app on the Mac is required; published material does not establish code execution or a broader system compromise.

The record

CVE
CVE-2025-30437
Published
Mar 31, 2025
Updated
Apr 2, 2026
Vendor
Apple
Product
macOS
Classifications
CWE-119
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Mar 31, 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 <15.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Apple · macOSversion=0 <15.4

Published CVSS scores

7.4CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

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)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer

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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