CVE-2021-28036

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-03-05 · updated 2026-06-17
Weakness: CWE-119

Description

An issue was discovered in the quinn crate before 0.7.0 for Rust. It may have invalid memory access for certain versions of the standard library because it relies on a direct cast of std::net::SocketAddrV4 and std::net::SocketAddrV6 data structures.

Affected products

quinn-rs quinn: before 0.5.4; from 0.6.0 before 0.6.2 — fixed in 0.5.4, 0.6.2

How to fix

Upgrade to a fixed version: quinn-rs quinn 0.5.4, 0.6.2. Check the vendor advisory for mitigations.

References

https://rustsec.org/advisories/RUSTSEC-2021-0035.html
https://rustsec.org/advisories/RUSTSEC-2021-0035.html

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