CVEvulnerability

CVE-2026-86950

8.8 HIGH Known exploited Published 2026-09-28 Modified 2026-10-27 Official page ↗

CISA Known Exploited Vulnerability

Apple Multiple Products Out-of-Bounds Write Vulnerability — Apple Multiple Products

Apple iOS, macOS, and iPadOS contain an out-of-bounds write vulnerability in CoreGraphics that may lead to arbitrary code execution.

Added to KEV
2026-09-29
Remediation due
2026-10-13
Ransomware use
Unknown
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.
Notes
https://support.apple.com/en-us/149226 ; https://support.apple.com/en-us/149228 ; https://support.apple.com/en-us/149229 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-86950
Status
Analyzed
Published
2026-09-28
Last modified
2026-10-27
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-787

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.

Affected configurations

• apple ipados (< 18.7.11) • apple ipados (>= 26.0 < 26.7.1) • apple iphone os (< 18.7.11) • apple iphone os (>= 26.0 < 26.7.1) • apple macos (< 15.8.1) • apple macos (>= 26.0 < 26.7.1)

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References