CVE-2026-86950
KEV: known exploited SSVC: activeFetching some sources has been requested. Reload in about a minute to see them.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack conditions and impact
Derived from the CISA-ADP (via NVD) CVSS 3.1 vector| Metric | Value | Meaning |
|---|---|---|
| Attack vector AV | N | Network |
| Attack complexity AC | L | Low (easy) |
| Privileges required PR | N | None |
| User interaction UI | R | Required |
| Scope S | U | Unchanged |
| Confidentiality C | H | High |
| Integrity I | H | High |
| Availability A | H | High |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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.
CISA KEV entry
Apple Multiple Products Out-of-Bounds Write Vulnerability — Apple / Multiple Products
Apple iOS, macOS, and iPadOS contain an out-of-bounds write vulnerability in CoreGraphics that may lead to arbitrary code execution.
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.
https://support.apple.com/en-us/149226 ; https://support.apple.com/en-us/149228 ; https://support.apple.com/en-us/149229 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-86950
CVSS assessments
| Provider | Version | Score | Vector |
|---|---|---|---|
| NVD / 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) | 3.1 | 8.8 HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| ADP / CISA-ADP | 3.1 | 8.8 HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products and packages
CNA (CVE.org)
| Vendor | Product | Versions |
|---|---|---|
| Apple | iOS and iPadOS | affected: 0 … < 26.7.1 |
| Apple | macOS | affected: 0 … < 15.8.1 affected: 0 … < 26.7.1 |
NVD CPE (4)
Show CPE list
| Vendor | Product | Range | CPE |
|---|---|---|---|
| apple | ipados | < 26.7.1 | cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* |
| apple | iphone_os | < 26.7.1 | cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* |
| apple | macos | < 15.8.1 | cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* |
| apple | macos | >= 26.0, < 26.7.1 | cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* |
Linux distribution status
References (7)
- http://seclists.org/fulldisclosure/2026/Sep/89 NVD, ADP CVE Mailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2026/Sep/90 NVD, ADP CVE Mailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2026/Sep/91 NVD, ADP CVE Mailing ListThird Party Advisory
- https://support.apple.com/en-us/149226 NVD, CNA Release NotesVendor Advisory
- https://support.apple.com/en-us/149228 NVD, CNA Release NotesVendor Advisory
- https://support.apple.com/en-us/149229 NVD, CNA Release NotesVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-86950 NVD, ADP CISA-ADP US Government Resourcegovernment-resource