CVE-2026-86958
High
Description
The issue was addressed with improved memory handling. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. An attacker with memory write capability may be able to bypass pointer authentication codes and run arbitrary code.
SeverityHigh
CVSS7.8
Exploit probability—
Product
macOS
PublishedOct 26, 2026
First seenOct 26, 2026
Weakness typeCWE-119Memory buffer bounds error
How to fix
Update
- Apple macOS15.8.2, 26.7.2, 27 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Apple macOS | v < 15.8.2, v < 26.7.2, v < 27 | 15.8.2, 26.7.2, 27 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.