CVE-2026-43656

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Summary

CVECVE-2026-43656
StatePUBLISHED
Assignerapple
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-11 21:19:01 UTC
Updated2026-05-12 18:17:27 UTC
DescriptionAn out-of-bounds write issue was addressed with improved input validation. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. Parsing a maliciously crafted file may lead to an unexpected app termination.

Risk And Classification

Primary CVSS: v3.1 7.3 HIGH from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Problem Types: CWE-787 | Parsing a maliciously crafted file may lead to an unexpected app termination | CWE-787 CWE-787 Out-of-bounds Write

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.3HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.3HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apple IOS And IPadOS affected 18.7.9 custom Not specified
CNA Apple IOS And IPadOS affected 26.5 custom Not specified
CNA Apple MacOS affected 14.8.7 custom Not specified
CNA Apple MacOS affected 15.7.7 custom Not specified
CNA Apple MacOS affected 26.5 custom Not specified

References

ReferenceSourceLinkTags
support.apple.com/en-us/127111 [email protected] support.apple.com
support.apple.com/en-us/127115 [email protected] support.apple.com
support.apple.com/en-us/127117 [email protected] support.apple.com
support.apple.com/en-us/127116 [email protected] support.apple.com
support.apple.com/en-us/127110 [email protected] support.apple.com
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