Process-memory disclosure via crafted asset catalogs
Published Jul 27, 2026 · Updated Jul 27, 2026
Out-of-bounds read in Apple CoreUI allows attackers to disclose process memory by processing a maliciously crafted asset catalog. Apple identifies only improved memory handling, while CISA maps the defect to an out-of-bounds read; no affected function or buffer has been disclosed. Exploitation requires local delivery and user interaction with the catalog, and the documented consequence is limited to process-memory disclosure.
Summary
What happened
Out-of-bounds read in Apple CoreUI allows attackers to disclose process memory by processing a maliciously crafted asset catalog. Apple identifies only improved memory handling, while CISA maps the defect to an out-of-bounds read; no affected function or buffer has been disclosed. Exploitation requires local delivery and user interaction with the catalog, and the documented consequence is limited to process-memory disclosure.
The record
- CVE
- CVE-2026-43738
- Published
- Jul 27, 2026
- Updated
- Jul 27, 2026
- Vendor
- Apple
- Product
- macOS
- Classifications
- CWE-125, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 27, 2026CVE publishedPublication date reported by the CVE source.
- Jul 27, 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 <14.8.8
- Affected versionversion=0 <15.7.8
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.
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
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo