Arbitrary file read via undisclosed ColorSync checks
Published Sep 26, 2023 · Updated Nov 4, 2025
Information disclosure in Apple macOS before 12.7, before 13.6, or before 14 allows local users to read arbitrary files via an app. The ColorSync component performs insufficient checks, but Apple has not disclosed the affected function, input path, or exact failed validation. Exploitation requires local execution and user interaction; the reported consequence is unauthorized file disclosure without integrity or availability impact.
Summary
What happened
Information disclosure in Apple macOS before 12.7, before 13.6, or before 14 allows local users to read arbitrary files via an app. The ColorSync component performs insufficient checks, but Apple has not disclosed the affected function, input path, or exact failed validation. Exploitation requires local execution and user interaction; the reported consequence is unauthorized file disclosure without integrity or availability impact.
The record
- CVE
- CVE-2023-40406
- Published
- Sep 26, 2023
- Updated
- Nov 4, 2025
- Vendor
- Apple
- Product
- macOS
- Classifications
- T1005
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 26, 2023CVE publishedPublication date reported by the CVE source.
- Nov 4, 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.
- Affected versionversion=unspecified <12.7
- Affected versionversion=unspecified <13.6
- Affected versionversion=unspecified <14
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
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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