CVE-2020-36444: Async-Coap Project Async-Coap

High severity, CVSS 8.1. EPSS: 0.8% chance of exploitation in the next 30 days.

An issue was discovered in the async-coap crate through 2020-12-08 for Rust. Send and Sync are implemented for ArcGuard<RC, T> without trait bounds on RC.

Affected products

• Async-Coap Project Async-Coap: up to and including 2020-12-08

Published 2021-08-08. Last modified 2026-06-17.