CVE-2022-32796

Kernel code execution via SMB state corruption

Published Sep 23, 2022 · Updated May 22, 2025

Memory corruption in SMB in Apple macOS Monterey before 12.5 allows local users to execute arbitrary code with kernel privileges. Faulty SMB state management corrupts memory, but Apple has not disclosed the affected function, object lifetime, or triggering input. Execution requires a user to run an app locally, and successful exploitation crosses the user-to-kernel boundary with full kernel-code execution.

CVSS severity7.8
High
EPSS probability1.05%
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 SMB in Apple macOS Monterey before 12.5 allows local users to execute arbitrary code with kernel privileges. Faulty SMB state management corrupts memory, but Apple has not disclosed the affected function, object lifetime, or triggering input. Execution requires a user to run an app locally, and successful exploitation crosses the user-to-kernel boundary with full kernel-code execution.

The record

CVE
CVE-2022-32796
Published
Sep 23, 2022
Updated
May 22, 2025
Vendor
Apple
Product
macOS
Classifications
CWE-787, T1068
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 23, 2022CVE publishedPublication date reported by the CVE source.
  2. May 22, 2025Record 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=unspecified <12.5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · macOSversion=unspecified <12.5

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1068Exploitation for Privilege Escalation

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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