Egypt's Court of Cassation rejected a request by lawyer Farid El-Dib on behalf of former president Hosni Mubarak and his sons to reinstate political rights stripped after their conviction in a corruption case in 2015.
The "Presidential Palaces Case" saw the Mubaraks receive three-year jail sentences and hefty monetary fines after being charged with embezzling EGP 125 million from public funds for the maintenance of presidential palaces to use for their private residences.
The sons were released in 2015 for their time already served in detention, while their father was freed last year.
The conviction sees the Mubaraks stripped of their political rights for six years in accordance with article 2'2014 on the Regulation of the Exercise of Political Rights.
Egypt has previously accepted requests by convicted individuals from the Mubarak-era, including steel mogul Ahmed Ezz and businessman Hussien Salem.
Meanwhile, Alaa and Gamal Mubarak have been making headlines since a court order was issued on 15 September for their detention for accusations related to stock market manipulation and insider trading.
An Egyptian court released them on bail on Thursday and set a new hearing for 20 November.