CVE-2024-32975: Envoyproxy Envoy

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

Envoy is a cloud-native, open source edge and service proxy. There is a crash at `QuicheDataReader::PeekVarInt62Length()`. It is caused by integer underflow in the `QuicStreamSequencerBuffer::PeekRegion()` implementation.

Affected products

• Envoyproxy Envoy: before 1.27.6 (fixed in 1.27.6); from 1.28.0, before 1.28.4 (fixed in 1.28.4); from 1.29.0, before 1.29.5 (fixed in 1.29.5); from 1.30.0, before 1.30.2 (fixed in 1.30.2)

Published 2024-06-04. Last modified 2026-06-17.