CVEs / CVE-2026-86950
CVE-2026-86950: Apple Multiple Products Out-of-Bounds Write Vulnerability
- Known exploited in the CISA KEV catalog since 29 Sep 2026
- high 8.8 CVSS 3.1 (from the CNA)
- EPSS 26.1% chance of exploitation in the next 30 days, higher than 97% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Apple iOS, macOS, and iPadOS contain an out-of-bounds write vulnerability in CoreGraphics that may lead to arbitrary code execution.
Description
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Apple iOS and iPadOS | before 18.7.11 | 18.7.11 |
| Apple iOS and iPadOS | before 26.7.1 | 26.7.1 |
| Apple macOS | before 15.8.1 | 15.8.1 |
| Apple macOS | before 26.7.1 | 26.7.1 |
Exploitation
| In CISA KEV since | 29 Sep 2026 |
|---|---|
| Due date for US federal agencies | 13 Oct 2026 |
| Used in ransomware campaigns | Unknown |
| 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. |
Severity
| CVSS 3.1 | 8.8 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HScored by the CNA (134c704f-9b21-4f2e-91b3-4a467353bcc0) |
|---|---|
| Weakness | CWE-787 |
References
- CVE-2026-86950 on NVD
- CVE-2026-86950 in the CISA KEV catalog
- https://support.apple.com/en-us/149226 (cited by CISA)
- https://support.apple.com/en-us/149228 (cited by CISA)
- https://support.apple.com/en-us/149229 (cited by CISA)
- https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk (cited by CISA)
- https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk (cited by CISA)
- https://support.apple.com/en-us/149225 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/149226 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/149228 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/149229 Release Notes, Vendor Advisory
- http://seclists.org/fulldisclosure/2026/Sep/89 Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2026/Sep/90 Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2026/Sep/91 Mailing List, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-86950 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.