CVE-2020-35471: Envoyproxy Envoy

High severity, CVSS 7.5. EPSS: 2.4% chance of exploitation in the next 30 days.

Envoy before 1.16.1 mishandles dropped and truncated datagrams, as demonstrated by a segmentation fault for a UDP packet size larger than 1500.

Affected products

• Envoyproxy Envoy: before 1.16.1 (fixed in 1.16.1)

Published 2020-12-15. Last modified 2026-06-17.