This indicates an attack attempt to exploit an Out-of-bounds Read vulnerability in Adobe InDesign.
This vulnerability is due to insufficient handling of maliciously crafted QXD file. It could allow malicious users to create Memory Leak scenarios.
Adobe InDesign 17.3 and earlier versions
Adobe InDesign 16.4.2 and earlier versions
Information Disclosure: Remote attackers can gain sensitive information from vulnerable systems.
Apply the most recent upgrade or patch from the vendor.