CVE-2019-15541: Rustls Project Rustls

High severity, CVSS 7.5. EPSS: 2.2% chance of exploitation in the next 30 days.

rustls-mio/examples/tlsserver.rs in the rustls crate before 0.16.0 for Rust allows attackers to cause a denial of service (loop of conn_event and ready) by arranging for a client to never be writable.

Affected products

• Rustls Project Rustls: before 0.16.0 (fixed in 0.16.0)

Published 2019-08-26. Last modified 2026-06-17.