Apple Ipados
CVE-2026-86950
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.
What this means for your business
- It affects Apple Ipados. It matters if your company, or a supplier that handles your data, runs it.
- Attackers are already using it. CISA added it to its list of flaws used in real attacks on 29 September 2026.
- An attacker can use it remotely, over a network, without a login, but only after tricking someone into an action such as opening a file or a link.
- FIRST's prediction model gives it a 0.8% chance of attack attempts being seen in the next 30 days, ranking above 55% of all known flaws.
What to do
- 1Check whether your company or your suppliers run Apple Ipados, and which version. The affected versions are listed further down this page.
- 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.
- 3Treat it as urgent. US federal agencies must fix it by 2 October 2026. That deadline does not apply to private companies, but it shows how seriously CISA takes it.
- 4Because attackers have used it, check the affected systems for signs of a break-in, not only for the update.
Fastnexa security experts
Attackers are already using this flaw. Is your Apple Ipados exposed?
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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.
CISA’s wording, unedited. The notes it mentions are in CISA’s catalogue entry.
Scoring
- CVSS
- 8.8 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- Weakness
- CWE-787
- Assigned by
- product-security@apple.com
Dates
- Published
- 2026-09-28
- Last modified
- 2026-09-29
- Added to KEV
- 2026-09-29
- Remediation due
- 2026-10-02
- Sources
- CISA KEV, NVD
Affected products
- Apple Ipados- 26.7.1
- Apple Iphone Os- 26.7.1
- Apple Macos- 15.8.1, 26.0 - 26.7.1
As listed in the NVD configuration data. Not a statement about your estate.
Coverage
- Apple Zero-Day Vulnerability Weaponized in Targeted AttacksDark Reading · 2026-09-29
- Apple security advisory (AV26-971)Canadian Centre for Cyber Security · 2026-09-29
- Apple Patches Zero-Day Linked to ‘Extremely Sophisticated Attack’SecurityWeek · 2026-09-29
- Apple Emergency Patch for iOS 26, macOS26, macOS15 (CVE-2026-86950), (Mon, Sep 28th)SANS Internet Storm Center · 2026-09-28
References
- 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