CVE-2023-27965

Kernel code execution via memory state corruption

Published May 8, 2023 · Updated Jan 29, 2025

Memory corruption in Apple macOS before 13.3 and Studio Display firmware before 16.4 allows local users to execute kernel code. Apple has not disclosed the affected component or the invalid state transition that corrupts memory. Exploitation requires a user to run a crafted local app, after which code executes with kernel privileges on the affected Mac or display firmware.

CVSS severity7.8
High
EPSS probability0.26%
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 Apple macOS before 13.3 and Studio Display firmware before 16.4 allows local users to execute kernel code. Apple has not disclosed the affected component or the invalid state transition that corrupts memory. Exploitation requires a user to run a crafted local app, after which code executes with kernel privileges on the affected Mac or display firmware.

The record

CVE
CVE-2023-27965
Published
May 8, 2023
Updated
Jan 29, 2025
Vendor
Apple
Product
Studio Display Firmware Update
Classifications
CWE-787, T1068
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 29, 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 <16.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · Studio Display Firmware Updateversion=unspecified <16.4
Apple · macOSversion=unspecified <13.3

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8NISTCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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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