Out-of-bounds read via integer overflow
Published Sep 14, 2026 · Updated Sep 14, 2026
Out-of-bounds read in Apple macOS allows context-dependent attackers to read beyond an intended buffer through a crafted document. Quick Look mishandles attacker-controlled document data because an integer overflow defeats the input validation needed to keep a subsequent read within bounds. The document must be processed by Quick Look; Apple reports only the out-of-bounds read and does not state whether the result is a crash or memory disclosure.
Summary
What happened
Out-of-bounds read in Apple macOS allows context-dependent attackers to read beyond an intended buffer through a crafted document. Quick Look mishandles attacker-controlled document data because an integer overflow defeats the input validation needed to keep a subsequent read within bounds. The document must be processed by Quick Look; Apple reports only the out-of-bounds read and does not state whether the result is a crash or memory disclosure.
The record
- CVE
- CVE-2026-84548
- Published
- Sep 14, 2026
- Updated
- Sep 14, 2026
- Vendor
- Apple
- Product
- macOS
- Classifications
- Unavailable
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 14, 2026CVE publishedPublication date reported by the CVE source.
- Sep 14, 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.
- Affected versionversion=0 <15.8
- Affected versionversion=0 <26.7
- Affected versionversion=0 <27
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
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Public exploit references
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Technologies
Your stack
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Your stack
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