CVE-2026-86950
Apple Multiple Products Out-of-Bounds Write Vulnerability
Apple iOS, macOS, and iPadOS contain an out-of-bounds write vulnerability in CoreGraphics that may lead to arbitrary code execution.
CISA due Oct 13, 2026
- Apple Multiple Products
- High
- CVSS 8.8
- EPSS 1.24%
- Fixed version listed
What to do
Fixed version listed
- 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.
- CISA deadline for US federal agencies
- Oct 13, 2026
Affected products
| Product | Affected | Fixed in |
|---|---|---|
| Apple iOS and iPadOS | before 26.7.1 | 26.7.1 |
| Apple macOS | before 15.8.1; before 26.7.1 | 26.7.1 |
Scores and signals
- Exploitation
- Exploited in the wild
- Severity
- High, CVSS 8.8 (v3.1, scored by CISA-ADP)
- EPSS
- 1.24% chance of exploitation in the next 30 days (EPSS from FIRST, as of Oct 23, 2026)
- CISA's SSVC decision points
- Exploitation: active. Automatable: no. Technical impact: total. As of Sep 30, 2026.
- Weakness
- CWE-787: Out-of-bounds Write
- Vendor
- Apple, Multiple Products
Timeline
- Added to CISA's Known Exploited Vulnerabilities catalog: exploited in the wild. US federal agencies must remediate by 2026-10-13.