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Vulnerability record · CVE-2026-86950 · published 28 September 2026

CVE-2026-86950: Apple ipados out-of-bounds write vulnerability

Apple · Ipados

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.

8.8 CVSS 3.1 High CISA KEV since 29 Sep 2026 EPSS 0.81% · top 44.7% CWE-787 · Out-of-bounds write
8.8CVSS 3.1 base score
0.81%EPSS exploitation probability, 30 days
YesIn CISA KEV, federal fix due in 1 days
3Affected product versions listed by NVD
7References
30 Sep 2026Last modified by NVD

Description

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.

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

Exploitation in the wild

CISA added CVE-2026-86950 to the Known Exploited Vulnerabilities catalog on 29 September 2026 as "Apple Multiple Products Out-of-Bounds Write Vulnerability". 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. Federal deadline 2 October 2026.

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://support.apple.com/en-us/149226 Release NotesVendor Advisory
https://support.apple.com/en-us/149228 Release NotesVendor Advisory
https://support.apple.com/en-us/149229 Release NotesVendor Advisory
http://seclists.org/fulldisclosure/2026/Sep/89 Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2026/Sep/90 Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2026/Sep/91 Mailing ListThird Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-86950 US Government Resource

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-86950), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.