Crash and memory disclosure via CUPS bounds error
Published Sep 14, 2026 · Updated Sep 14, 2026
Out-of-bounds read in CUPS in Apple macOS allows attackers to crash an app or disclose process memory via a malicious file. CUPS processes file data without sufficient bounds checking, allowing a read beyond the intended buffer when it parses crafted content. File processing is required, and the confirmed consequence is limited to application termination or exposure of data already present in the affected process.
Summary
What happened
Out-of-bounds read in CUPS in Apple macOS allows attackers to crash an app or disclose process memory via a malicious file. CUPS processes file data without sufficient bounds checking, allowing a read beyond the intended buffer when it parses crafted content. File processing is required, and the confirmed consequence is limited to application termination or exposure of data already present in the affected process.
The record
- CVE
- CVE-2026-84516
- 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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