CVE-2026-84590
Medium
Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. A remote attacker may be able to cause unexpected app termination or heap corruption.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Apple Macos
PublishedOct 26, 2026
First seenOct 26, 2026
How to fix
Update
- apple macos15.8.2, 26.7.2, 27.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apple macos | v < 15.8.2, 26.0 ≤ v < 26.7.2, 27.0 ≤ v < 27.2 | 15.8.2, 26.7.2, 27.2 |
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