CVE-2026-86950NVD

Vulnerability Summary

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7.1 and iPadOS 26.7.1, macOS Sequoia 15.8.1, macOS Tahoe 26.7.1. Processing a maliciously crafted file may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 27.

Severity Level

HIGH(8.8)

Published Date

Sep 28, 2026

Last Modified

Oct 1, 2026

Exploitation Status

ACTIVE

EPSS Score (30-Day)

1.24%Probability

Root Weakness (CWE)

CWE-787: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CVSS v3.1 Base Metrics — Score 8.8 (HIGH)

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

Affected & Patched Versions

Affected Versions

Apple Ipados < 26.7.1
Apple Iphone Os < 26.7.1
Apple Macos < 15.8.1
Apple Macos >= 26.0 and < 26.7.1

Patched Versions

Apple Ipados 26.7.1
Apple Iphone Os 26.7.1
Apple Macos 15.8.1
Apple Macos 26.7.1

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