PaperCut Issues Emergency Patch for Actively Exploited Flaw

PaperCut Software has issued an emergency security advisory warning that a critical vulnerability in its widely used print management software is being actively exploited by cybercriminals. The company confirmed on Thursday, August 27, 2026, that it is aware of confirmed customer incidents involving its PaperCut NG and PaperCut MF products and is treating the matter with the highest priority. The vulnerability affects all versions of the software, which is commonly deployed by universities, corporations, and government agencies to manage printing from brands like Canon, Epson, and Xerox.