CVE-2026-43666

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-43666
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 bounds checking. 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, tvOS 26.5, visionOS 26.5, watchOS 26.5. An attacker on the local network may be able to cause a denial-of-service.

Risk And Classification

Primary CVSS: v3.1 6.2 MEDIUM from ADP

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

Problem Types: CWE-787 | An attacker on the local network may be able to cause a denial-of-service | CWE-787 CWE-787 Out-of-bounds Write

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED6.2MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary6.2MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

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

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

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
CNA Apple TvOS affected 26.5 custom Not specified
CNA Apple VisionOS affected 26.5 custom Not specified
CNA Apple WatchOS affected 26.5 custom Not specified

References

ReferenceSourceLinkTags
support.apple.com/en-us/127111 [email protected] support.apple.com
support.apple.com/en-us/127118 [email protected] support.apple.com
support.apple.com/en-us/127115 [email protected] support.apple.com
support.apple.com/en-us/127120 [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/127119 [email protected] support.apple.com
support.apple.com/en-us/127110 [email protected] support.apple.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report