“First Word, then Excel, now PowerPoint.
“For the third time in two months, a zero-day vulnerability in a widely used Microsoft Office software application is being used in targeted hacker attacks.”
eWeek notes, “The attack comes just days after Microsoft's July Patch Tuesday and closely mirrors the situation in June when a zero-day Excel attack was discovered 24 hours after Patch Day.”
Without any further details of the case, it seems to me that this is aimed at Microsoft's reputation more than anything else. It seems to me that this is the case because the 0-day exploits were released and used in targeted attacks soon after patch Tuesday consecutive times.