CVE-2026-86950
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in, but needs a user to act. High risk of data exposure, data tampering, service disruption.
- In the wild
- CISA lists this as exploited in real attacks. Treat as urgent.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- 2026-09-29 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
- 2026-10-13 Remediation deadlineCISA's due date for federal agencies to fix it
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: yes, CISA lists it. This puts it above everything that is not.
- Exploit odds: 26.2% in the next 30 days (EPSS).
- Severity: 8.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Added to CISA KEV
- 2026-09-29
- Exploit probability
- 26.2% · EPSS, next 30 days
- Weakness
- CWE-787 · Out-of-bounds write
- Record status
- Analyzed
Affected
- Apple Ipados < 18.7.11
- Apple Ipados < 26.7.1
- Apple Iphone Os < 18.7.11
- Apple Iphone Os < 26.7.1
- Apple macOS < 15.8.1
- Apple macOS < 26.7.1
Attack profile CVSS 3.1 · 8.8
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-86950.md and follow it. Check whether this project is affected by CVE-2026-86950. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://support.apple.com/en-us/149225
- https://support.apple.com/en-us/149226
- https://support.apple.com/en-us/149228
- https://support.apple.com/en-us/149229
References
- https://support.apple.com/en-us/149225
- https://support.apple.com/en-us/149226
- https://support.apple.com/en-us/149228
- https://support.apple.com/en-us/149229
- http://seclists.org/fulldisclosure/2026/Sep/89
- http://seclists.org/fulldisclosure/2026/Sep/90
- http://seclists.org/fulldisclosure/2026/Sep/91
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-86950