CVE-2026-86950 Apple iOS & macOS - Remote Code Execution

Apple iOS < 26.7.1, iPadOS < 26.7.1, macOS Sequoia < 15.8.1, and macOS Tahoe < 26.7.1 contain a buffer overflow caused by improper bounds checking when processing maliciously crafted files, letting attackers execute arbitrary code, exploit requires processing a crafted file.

CVSS base score 8.8 /10
High
CISA KEV
Exploited in the wild
Public exploit
Proof of concept available
Authentication
Not required
EPSS
1.24% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
28 September 2026
Updated
15 October 2026
Weakness
CWE-787

Vendor fix

Update to iOS 26.7.1, iPadOS 26.7.1, macOS Sequoia 15.8.1, macOS Tahoe 26.7.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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