Process termination or memory disclosure via out-of-bounds read
Published Sep 14, 2026 · Updated Sep 14, 2026
Out-of-bounds read in Apple macOS before 15.8, before 26.7, and before 27 allows local users to crash a process or disclose process memory. Apple has not published the affected component or the operation that reads beyond its intended bounds. Execution of a locally installed app is required; impact is limited to process termination or disclosure of process memory.
Summary
What happened
Out-of-bounds read in Apple macOS before 15.8, before 26.7, and before 27 allows local users to crash a process or disclose process memory. Apple has not published the affected component or the operation that reads beyond its intended bounds. Execution of a locally installed app is required; impact is limited to process termination or disclosure of process memory.
The record
- CVE
- CVE-2026-43683
- Published
- Sep 14, 2026
- Updated
- Sep 14, 2026
- Vendor
- Apple
- Product
- macOS
- Classifications
- Unavailable
- Attack vector
- local
- 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
Compare your product and version with the public record. A matching version still requires validation against your environment.
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
No CVSS assessment is available in this record.
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
No sourced classifications are available.
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
See the directory against your own environment.
Your stack
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