CVE-2026-86950 (GCVE-0-2026-86950)

Vulnerability from cvelistv5 – Published: 2026-09-28 19:13 – Updated: 2026-09-29 14:58
VLAI CISA
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
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 14:29 UTC
CWE
  • 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.
  • CWE-787 - Out-of-bounds Write
Assigner
References
Impacted products
Vendor Product Version CPE status
Apple iOS and iPadOS Affected: 0 , < 26.7.1 (custom)
guessed Create a notification for this product.
Apple macOS Affected: 0 , < 15.8.1 (custom)
Affected: 0 , < 26.7.1 (custom)
guessed Create a notification for this product.
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 76b375c2-45be-4b9e-872f-b15a5433d768

Vulnerability ID: CVE-2026-86950

Status: Confirmed

Status Updated: 2026-09-29 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-09-29
Asserted: 2026-09-29
Scope
Notes: Apple Multiple Products Out-of-Bounds Write Vulnerability | Affected: Apple / Multiple Products | Description: Apple iOS, macOS, and iPadOS contain an out-of-bounds write vulnerability in CoreGraphics that may lead to arbitrary code execution. | 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. | Due date: 2026-10-02 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): 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
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-787
Feed CISA Known Exploited Vulnerabilities Catalog
Product Multiple Products
Due Date 2026-10-02
Date Added 2026-09-29
Vendorproject Apple
Vulnerabilityname Apple Multiple Products Out-of-Bounds Write Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-09-29 15:00 UTC | Updated: 2026-09-29 15:00 UTC
Show details on NVD website
To clipboard 

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Sightings

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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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