Sometimes obsolescence is a "security control"...
This is a funny situation. Was on an internal pentest and the client had ESC6, ESC8, and ESC11.
However when I attempted the ESC8 relaying attack, it failed, certificate expired.
The root CA certificate had expired. 🙃
Obviously I say security control jokingly, because there's absolutely 0 reason to rely on expired certificates for your security.