Windows 10 default PDF reader put users at risk
Microsoft recently released its monthly security patch, and among the security bulletins was a critical vulnerability in the Windows PDF library, Softpedia reported.
According to the report, attackers could embed malicious code in the header of a PDF file that a Windows machine using the library would then execute.
By default, Windows 10 asks you whether to open PDF files in its default browser – Edge.
If an attacker managed to get you to access an infected PDF file, the exploit code would cause a memory corruption issue – which Softpedia said would let the attacker execute custom code on the Windows machine.
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