CVE-2026-43666_CVE-2026-43666

6.2 / 10

MEDIUM

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

Description

An 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.

Basic Information

ID CVE-2026-43666

Source apple

Published May 11, 2026 at 20:07

Modified May 12, 2026 at 17:17

Affected Product

Vendor Apple

Product iOS and iPadOS

Affected Versions Apple iOS and iPadOS 0
Apple iOS and iPadOS 0
Apple macOS 0
Apple macOS 0
Apple macOS 0
Apple tvOS 0
Apple visionOS 0
Apple watchOS 0

CWE Classification

CWE-787

References

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    "description": "An 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.",
    "published": "2026-05-11T20:07:37.808Z",
    "modified": "2026-05-12T17:17:23.910Z",
    "type": "cve",
    "title": "CVE-2026-43666",
    "source": "apple",
    "references": "https://support.apple.com/en-us/127110\nhttps://support.apple.com/en-us/127111\nhttps://support.apple.com/en-us/127115\nhttps://support.apple.com/en-us/127116\nhttps://support.apple.com/en-us/127117\nhttps://support.apple.com/en-us/127118\nhttps://support.apple.com/en-us/127119\nhttps://support.apple.com/en-us/127120",
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    "sourceData": "Apple iOS and iPadOS 0\nApple iOS and iPadOS 0\nApple macOS 0\nApple macOS 0\nApple macOS 0\nApple tvOS 0\nApple visionOS 0\nApple watchOS 0",
    "sourceHref": "",
    "cvss": {
        "score": 6.2,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
        "version": "3.1"
    },
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