Apple Multiple Products
CVE-2026-86950: Apple Multiple Products Out-of-Bounds Write Vulnerability
What it is
Apple iOS, macOS, and iPadOS contain an out-of-bounds write vulnerability in CoreGraphics that may lead to arbitrary code execution.
What to do
Schedule the vendor fix into this week’s change window, prioritising internet-facing and business-critical systems. Confirm the fix is applied everywhere, not just where it was easy.
- Priority
- This week: Schedule into this week’s change window.
- Severity (CVSS)
- 8.8 high
- CISA assessment (SSVC)
- actively exploited; needs manual effort per target; total control of the affected system
- Exploit probability (EPSS, 30 days)
- 1.2%, higher than 68% of all CVEs
- Added to CISA KEV
- 29 September 2026
- CISA fix-by date
- 13 October 2026 (US federal agencies; a sensible deadline for everyone)
- Ransomware use
- Not known
- Weakness
- CWE-787
References
- NIST NVD entry
- CISA KEV entry
- support.apple.com/en-us/149226
- support.apple.com/en-us/149228
- support.apple.com/en-us/149229
- seclists.org/fulldisclosure/2026/Sep/89
- seclists.org/fulldisclosure/2026/Sep/90
- seclists.org/fulldisclosure/2026/Sep/91
Sources: CISA Known Exploited Vulnerabilities · FIRST Exploit Prediction Scoring System (EPSS) · NIST National Vulnerability Database · CISA Vulnrichment (SSVC), via the CVE Program. This product uses data from the NVD API but is not endorsed or certified by the NVD. Summaries are machine-written from CISA’s description; treat the vendor’s advisory as the authority for fixes.