CVE-2026-86950

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.

Affected

Apple · iOS and iPadOS · macOS

CVSS v3.1 CNA

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

1.24% chance of exploitation in the next 30 days, 69th percentile

CISA KEV

added 2026-09-29

Published

2026-09-28

Updated

2026-10-01

Proof-of-concept exploits (4)

• DeAurity/CVE-2026-86950-POC2★ · 2026-09-29
• 0xBlackash/CVE-2026-869500★ · 2026-10-05
• 34zY/CVE-2026-869500★ · 2026-10-17
• java99999/CVE-2026-86950-POC

Security advisories

• https://support.apple.com/en-us/149226
• https://support.apple.com/en-us/149228
• https://support.apple.com/en-us/149229
• http://seclists.org/fulldisclosure/2026/Sep/89
• http://seclists.org/fulldisclosure/2026/Sep/90
• http://seclists.org/fulldisclosure/2026/Sep/91

References

• CVE Record
• NVD entry

Related

• CVE-2017-6074
• CVE-2021-40444
• CVE-2021-44228
• CVE-2022-24112
• CVE-2022-26134
• CVE-2025-14177