Code execution via CoreGraphics out-of-bounds write
Published Sep 28, 2026 · Updated Sep 28, 2026
An out-of-bounds write in Apple CoreGraphics on iOS, iPadOS, and macOS allows attackers to execute code through a crafted file. CoreGraphics writes beyond a buffer while processing the file; Apple identifies faulty bounds checking but does not disclose the specific parser or file format. File processing is required, and Apple reports possible targeted exploitation on iOS before iOS 27 without confirming exploitation on macOS.
Summary
What happened
An out-of-bounds write in Apple CoreGraphics on iOS, iPadOS, and macOS allows attackers to execute code through a crafted file. CoreGraphics writes beyond a buffer while processing the file; Apple identifies faulty bounds checking but does not disclose the specific parser or file format. File processing is required, and Apple reports possible targeted exploitation on iOS before iOS 27 without confirming exploitation on macOS.
The record
- CVE
- CVE-2026-86950
- Published
- Sep 28, 2026
- Updated
- Sep 28, 2026
- Vendor
- Apple Inc.
- Product
- iOS and iPadOS
- Classifications
- T1203
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 28, 2026CVE publishedPublication date reported by the CVE source.
- Sep 28, 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 <26.7.1
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.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Reported exploitation
- Apple report of possible targeted iOS exploitationreported exploitation
Technologies
Your stack
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Your stack
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