CVE-2022-26758

Shared-memory corruption via faulty Kernel state management

Published Jun 10, 2026 · Updated Jun 10, 2026

Memory corruption in the Kernel in Apple macOS Monterey before 12.4 allows local users to alter memory shared between processes. The Kernel uses faulty state management for shared interprocess memory, allowing a malicious local application to corrupt that shared memory. Execution of a malicious application on the Mac is required; Apple has not disclosed the affected kernel routine or a consequence beyond unexpected shared-memory changes.

CVSS severity7.1
High
EPSS probability0.10%
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 the Kernel in Apple macOS Monterey before 12.4 allows local users to alter memory shared between processes. The Kernel uses faulty state management for shared interprocess memory, allowing a malicious local application to corrupt that shared memory. Execution of a malicious application on the Mac is required; Apple has not disclosed the affected kernel routine or a consequence beyond unexpected shared-memory changes.

The record

CVE
CVE-2022-26758
Published
Jun 10, 2026
Updated
Jun 10, 2026
Vendor
Apple
Product
macOS
Classifications
CWE-362
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 10, 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 <12.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Apple · macOSversion=0 <12.4

Published CVSS scores

7.1CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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