 In 2014, he was added to the list of candidates for the Supreme Court.Kabub gained a reputation as an outstanding jurist in the economic, civil, and criminal fields.Notable cases he tried include those of business magnate Nochi Dankner, who he sentenced to two years imprisonment and a NIS 800,000 fine for securities fraud, and director of the Israel Electric Corporation Dan Cohen, who he sentenced to six years imprisonment and a NIS 10 million fine for fraud, breach of trust, and obstruction of justice,

Kabub was a candidate to replace Supreme Court judge Yoram Danziger upon his retirement in February 2018.