CVE-2020-9840: Apple Nioextras

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

In SwiftNIO Extras before 1.4.1, a logic issue was addressed with improved restrictions.

Affected products

• Apple Nioextras: before 1.4.1 (fixed in 1.4.1)

Published 2020-05-11. Last modified 2026-06-17.