Dashboard / CVE-2026-43666

CVE-2026-43666

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 47/100
Published: 2026-05-11 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

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.

Weakness Classification (1)

Affected Software (10)

VendorProductVersion
apple ipados < 18.7.9
apple ipados 26.0 – 26.5
apple iphone_os < 18.7.9
apple iphone_os 26.0 – 26.5
apple macos 14.0 – 14.8.7
apple macos 15.0 – 15.7.7
apple macos 26.0 – 26.5
apple tvos < 26.5
apple visionos < 26.5
apple watchos < 26.5

References & Advisories (8)

https://support.apple.com/en-us/127110
Release Notes Vendor Advisory
https://support.apple.com/en-us/127111
Release Notes Vendor Advisory
https://support.apple.com/en-us/127115
Release Notes Vendor Advisory
https://support.apple.com/en-us/127116
Release Notes Vendor Advisory
https://support.apple.com/en-us/127117
Release Notes Vendor Advisory
https://support.apple.com/en-us/127118
Release Notes Vendor Advisory
https://support.apple.com/en-us/127119
Release Notes Vendor Advisory
https://support.apple.com/en-us/127120
Release Notes Vendor Advisory

Bug Bounty Relevance

47 / 100
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.2 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.15%
Raw Score 0.001470
Percentile 3.9%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00147
2026-10-28
0.00147

Intelligence Sources

nvd ref →

External Links