Uma explicação para isso está listada aqui - link
Para citar:
There are >10 versions of the "VeriSign Class 3 Public Primary Certification Authority - G5" certificate. Some of them are signed by the certificate being removed ( https://googleonlinesecurity.blogspot.com/2015/12/proactive-measures-in-digital.html ), while others are "self-signed". OS X has trusted the self-signed version for some time; however, if you have locally installed one of the "cross-signed" versions, then it will take precedence.
As etapas a seguir corrigiram isso para mim:
- Ir para
chrome://components
- Se CRLSet for menor que 2698, clique em "Verificar se há atualização"
- Eu tive que reiniciar o Chromium, YMMV.