The biggest risks are keyword cannibalization and Google refusing to index the pages. When dozens of packaging box pages share nearly identical text, Search Console will usually start throwing them into "Crawled - currently not indexed" because Google treats them as low-value duplicates.
A few quick fixes:
1) Differentiate by use case: write a short paragraph explaining what each specific box is best suited for (e.g., heavy shipping, cosmetics, apparel, food packaging).
2) Use structured bullet points for unique technical specs like dimensions, flute size, board grade, and weight capacity.
3) If the products are just slight size or color variations, group them as variants under a single parent product page or set proper canonical tags.