CVE-2026-86950

HIGH8.8

CISA KEV

Published 2026-09-28 · Updated 2026-10-27 · Source product-security@apple.com

Summary

CVE-2026-86950 is a high-severity (CVSS 8.8) vulnerability in Apple Multiple Products. CISA added it to the Known Exploited Vulnerabilities catalog on September 29, 2026, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by October 13, 2026. CISA does not currently list it as used in ransomware campaigns. Apple has 96 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.

All 96 known-exploited Apple vulnerabilities →

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.11 and iPadOS 18.7.11, 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.

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

CWE-787

CISA Known-Exploited Vulnerability

Product: Apple — Multiple Products

Name: Apple Multiple Products Out-of-Bounds Write Vulnerability

Date added: 2026-09-29 · Due: 2026-10-13

Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

References

View on NVD

More exploited Apple vulnerabilities

Most recently added to CISA KEV

CVE-2024-27834
Multiple Products — Apple Multiple Products Improper Authentication Vulnerability
added 2026-11-04
CVE-2026-65400
macOS — Apple macOS Improper Authentication Vulnerability
added 2026-08-18
CVE-2025-43510
Multiple Products — Apple Multiple Products Improper Locking Vulnerability
added 2026-03-20
CVE-2025-43520
Multiple Products — Apple Multiple Products Classic Buffer Overflow Vulnerability
added 2026-03-20
CVE-2025-31277
Multiple Products — Apple Multiple Products Buffer Overflow Vulnerability
added 2026-03-20
CVE-2023-43000
Multiple Products — Apple Multiple products Use-After-Free Vulnerability
added 2026-03-05

View all →

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