CVE-2024-23266

Protected filesystem modification by local applications

Published Mar 8, 2024 · Updated Apr 2, 2026

Improper access control in Apple's Kerberos v5 PAM module in affected macOS releases allows local users to modify protected files. Apple has not disclosed which check was missing or how application-controlled input reaches the protected filesystem operation. Exploitation requires user interaction with a local application and affects file integrity, with no reported disclosure or service interruption.

CVSS severity5.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Apple's Kerberos v5 PAM module in affected macOS releases allows local users to modify protected files. Apple has not disclosed which check was missing or how application-controlled input reaches the protected filesystem operation. Exploitation requires user interaction with a local application and affects file integrity, with no reported disclosure or service interruption.

The record

CVE
CVE-2024-23266
Published
Mar 8, 2024
Updated
Apr 2, 2026
Vendor
Apple
Product
macOS
Classifications
CWE-284, T1565
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 8, 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 <12.7.4
  2. Affected versionversion=0 <13.6.5
  3. Affected versionversion=0 <14.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · macOSversion=0 <12.7.4; version=0 <13.6.5; version=0 <14.4

Published CVSS scores

5.5NISTCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/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.

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

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-284Improper Access Control
T1565Data Manipulation

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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