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Critical Wormable Security Flaw Found in Several HP Printer Models

November 30, 2021

Cybersecurity researchers on Tuesday disclosed multiple security flaws affecting 150 different multifunction printers (MFPs) from HP Inc that could be potentially abused by an adversary to take control of vulnerable devices, pilfer sensitive information, and infiltrate enterprise networks to mount other attacks.

The two weaknesses — collectively called Printing Shellz — were discovered and reported to HP by F-Secure Labs researchers Timo Hirvonen and Alexander Bolshev on April 29, 2021, prompting the PC maker to issue patches earlier this month.

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