Stack-based buffer overflow in Dawningsoft PowerCHM 5.7 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via an HTML file with a link to a long URL, as demonstrated by a .rar URL.
Improper Restriction of Operations within the Bounds of a Memory Buffer The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.