System crash or kernel-memory corruption via out-of-bounds access
Published Sep 14, 2026 · Updated Sep 14, 2026
Out-of-bounds access in IOMobileFrameBuffer in affected Apple operating systems allows local users to crash the system or corrupt kernel memory. Apple has not disclosed the exact routine or attacker-controlled input; it states only that improved bounds checking corrects the operation. Exploitation requires running an app on an affected device, and no public source establishes code execution beyond the documented kernel-memory corruption.
Summary
What happened
Out-of-bounds access in IOMobileFrameBuffer in affected Apple operating systems allows local users to crash the system or corrupt kernel memory. Apple has not disclosed the exact routine or attacker-controlled input; it states only that improved bounds checking corrects the operation. Exploitation requires running an app on an affected device, and no public source establishes code execution beyond the documented kernel-memory corruption.
The record
- CVE
- CVE-2026-64736
- Published
- Sep 14, 2026
- Updated
- Sep 14, 2026
- Vendor
- Apple
- Product
- iOS and iPadOS
- Classifications
- T1499.004
- 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
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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 <26.6.1
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.
Weakness, pattern, technique
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
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Your stack
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