CVE-2021-35944
Couchbase Server 6.5.x, 6.6.x through 6.6.2, and 7.0.0 has a Buffer Overflow. A specially crafted network packet sent from an attacker can crash memcached.
Date published : 2021-09-29
https://docs.couchbase.com/server/current/release-notes/relnotes.html