CVE-2026-86950An out-of-bounds write issue was addressed with improved bounds checking.
Updated under an hour ago ()
Does this affect you?
It affects Apple iOS and iPadOS and 3 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Sep 29, 2026; federal agencies had to remediate by Oct 13, 2026. Treat that date as your deadline.
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Free account, 1 product
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
- 8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Added to CISA KEV Sep 29, 2026; federal remediation due Oct 13, 2026Apply 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.
- EPSS (exploitation in the next 30 days)
- 1.24% (percentile 69)
- Assigned by
- apple
- NVD analysis
- Analyzed
- Record last updated
- Oct 1, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Apple iOS and iPadOS apple:ios_and_ipados (from the name) | before 26.7.1 | CNA record |
Apple macOS apple:macos (from the name) | before 15.8.1; before 26.7.1 | CNA record |
apple ipados apple:ipados | before 26.7.1 | NVD |
apple iphone_os apple:iphone_os | before 26.7.1 | NVD |
apple macos apple:macos | before 15.8.1; from 26.0 before 26.7.1 | NVD |
References
- https://support.apple.com/en-us/149226release-notes, vendor-advisory
- https://support.apple.com/en-us/149228release-notes, vendor-advisory
- https://support.apple.com/en-us/149229release-notes, vendor-advisory
- http://seclists.org/fulldisclosure/2026/Sep/89mailing-list, third-party-advisory
- http://seclists.org/fulldisclosure/2026/Sep/90mailing-list, third-party-advisory
- http://seclists.org/fulldisclosure/2026/Sep/91mailing-list, third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-86950us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.