Denial-of-service via ImageIO type confusion
Published Jul 27, 2026 · Updated Jul 27, 2026
Type confusion in ImageIO across iOS, iPadOS, macOS, tvOS, visionOS, and watchOS allows attackers to cause a denial-of-service. ImageIO reaches a type-confusion condition while processing a malicious image; Apple has not disclosed the parser, incompatible type pair, or failing operation. Exploitation requires local image processing and user interaction; the documented consequence is service interruption, not disclosure or code execution.
Summary
What happened
Type confusion in ImageIO across iOS, iPadOS, macOS, tvOS, visionOS, and watchOS allows attackers to cause a denial-of-service. ImageIO reaches a type-confusion condition while processing a malicious image; Apple has not disclosed the parser, incompatible type pair, or failing operation. Exploitation requires local image processing and user interaction; the documented consequence is service interruption, not disclosure or code execution.
The record
- CVE
- CVE-2026-64693
- Published
- Jul 27, 2026
- Updated
- Jul 27, 2026
- Vendor
- Apple
- Product
- iOS and iPadOS
- Classifications
- CWE-843, T1499.004
- 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
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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
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.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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