Windows zero-day vulnerability exploited in ransomware attacks

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Microsoft has patched a zero-day vulnerability in the Windows Common Log File System (CLFS), actively exploited by cybercriminals to escalate privileges and deploy Nokoyawa ransomware payloads.


Windows

In light of its ongoing exploitation, CISA also added the CVE-2023-28252 Windows zero-day to its catalog of Known Exploited Vulnerabilities today, ordering Federal Civilian Executive Branch (FCEB) agencies to secure their systems against it by May 2nd.

"An attacker who successfully exploited this vulnerability could gain SYSTEM privileges," Microsoft said in an advisory, crediting researchers Boris Larin, Genwei Jiang, and Quan Jin for reporting the issue.

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