The pace bowler has claimed over 300 dismissals in 71 Test matches with an average of 22.10.
Australia's selection chief George Bailey has stated that skipper Cummins will play a "major part" in this winter's historic rivalry.
Speculation had been growing that the veteran bowler might sit out due to a ongoing back issue that remained unresolved.
Earlier indications from team management suggested no definitive call had been made regarding Cummins' participation, with the five-Test series scheduled to begin on November 21 in the WACA.
He revealed that the captain is progressing and felt positive about his chances of being involved.
"We're aware that time is getting short and there are permutations involved, not just the physical problem, but further aspects," Bailey remarked.
"It's positive. We firmly believe that he will feature a major part. Hopefully from the opening match. If not, we'll reassess."
Previous Setbacks
Cummins was ruled out the ODI and T20 games against India and New Zealand in the previous weeks after scans revealed a lower back issue.
Previous incidents include of recurring issues, with recurrences in 2012-13, 2013-14 and 2015-16 causing him to miss multiple domestic campaigns in a limited period.
The bowler mentioned he would be ""aggressive" and "take risks" in his rehabilitation process to ensure his availability for the series.
Bailey noted that he did not know if Cummins had begun bowling as part of his recovery but acknowledged it was "pressing" for him to recover fully for the opener.
Alternative Arrangements
In case of absence, veteran batsman Smith will assume leadership.
Versatile player Green was excluded lately from Australia's squad for their limited-overs matches against the Asian giants as a safety move because of an abdominal issue.
Bailey described it as a "small issue and stated that he'll feature in the Sheffield Shield, so will be "ideally positioned to deliver overs."
"We put so much time has gone into building out the plan for him to take part for the initial game as an all-rounder," the selector detailed.
"Originally, he'd only feature in the first two ODIs in any case. The way he swings the cricket bat in white-ball cricket, should it hinder progress for another day, we just made the decision to take a cautious route."
Series Schedule
The Ashes: Australia v England
Spanning from late 2025 to early 2026
