CVE-2026-86950

high

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.

References

http://seclists.org/fulldisclosure/2026/Sep/91

http://seclists.org/fulldisclosure/2026/Sep/90

http://seclists.org/fulldisclosure/2026/Sep/89

https://www.theregister.com/security/2026/09/29/apple-patches-coregraphics-zero-day-already-exploited-in-targeted-attacks/5299721

https://www.securityweek.com/apple-patches-meta-reported-zero-day-linked-to-extremely-sophisticated-attack/

https://www.malwarebytes.com/blog/bugs/2026/09/update-your-iphone-ipad-or-mac-flaw-could-run-attackers-code

https://www.helpnetsecurity.com/2026/09/29/apple-core-graphics-zero-day-cve-2026-86950-fixed/

https://www.cisa.gov/news-events/alerts/2026/09/29/cisa-adds-one-known-exploited-vulnerability-catalog

https://www.bleepingcomputer.com/news/security/apple-patches-coregraphics-zero-day-flaw-exploited-in-attacks/

https://securityaffairs.com/200001/hacking/apple-patches-coregraphics-zero-day-linked-to-sophisticated-targeted-attacks.html

https://thehackernews.com/2026/09/apple-patches-coregraphics-flaw.html

https://support.apple.com/en-ca/149229

https://support.apple.com/en-ca/149228

https://support.apple.com/en-ca/149226

https://isc.sans.edu/diary/rss/33376

https://github.com/DeAurity/CVE-2026-86950-POC

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-86950

https://support.apple.com/en-us/149229

https://support.apple.com/en-us/149228

https://support.apple.com/en-us/149226

Details

Source: Mitre, NVD

Published: 2026-09-28

Updated: 2026-09-30

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 8.8

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

Severity: High

EPSS

EPSS: 0.00812

Vulnerability Watch

Tenable Research has classified this CVE under the following Vulnerability Watch classification, which includes active and historical (inactive) classifications. You can learn more about these classifications on our blog.

Vulnerability Being Monitored

Detections

Analytics