Security researchers have discovered a potentially dangerous vulnerability in the firmware of various Hewlett Packard enterprise printer models. The vulnerability (CVE-2017-2750), rated as high in severity with 8.1 CVSS scale, is due to insufficiently validating parts of Dynamic Link Libraries (DLL) The vulnerability affects 54 printer models ranging from HP LaserJet Enterprise, LaserJet Managed, PageWide Enterprise and OfficeJet Enterprise printers. The vendor fixed the issue with the release of new firmware updates for its business and enterprise printers.
Source: https://thehackernews.com/2017/11/hp-printer-hacking.html