Contact disclosure via Game Center cache handling
Published Sep 26, 2023 · Updated Nov 4, 2025
Information disclosure in Game Center on iOS, iPadOS, macOS, tvOS, and watchOS allows attackers to access contacts through a local app. The flaw is in Game Center's cache handling, but Apple has not disclosed which cache operation exposes contact records. Exploitation requires a locally running app and user interaction; the documented consequence is contact disclosure without data modification or service interruption.
Summary
What happened
Information disclosure in Game Center on iOS, iPadOS, macOS, tvOS, and watchOS allows attackers to access contacts through a local app. The flaw is in Game Center's cache handling, but Apple has not disclosed which cache operation exposes contact records. Exploitation requires a locally running app and user interaction; the documented consequence is contact disclosure without data modification or service interruption.
The record
- CVE
- CVE-2023-40395
- Published
- Sep 26, 2023
- Updated
- Nov 4, 2025
- Vendor
- Apple
- Product
- iOS and iPadOS
- 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 <16.7
- Affected versionversion=unspecified <17
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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