CLFS
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Windows CLFS Vulnerability Could Lead to ‘Widespread Deployment and Detonation of Ransomware’
Image: nicescene/Adobe Stock Microsoft has detected a zero-day vulnerability in the Windows Common Log File System (CLFS) being exploited in the wild to deploy ransomware. Target industries include IT, real estate, finance, software, and retail, with companies based in the US, Spain, Venezuela, and Saudi Arabia. The vulnerability, tracked as CVE-2025-29824 and rated “important,” is present in the CLFS kernel…
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Blog
Windows CLFS zero-day exploited by ransomware gang
Microsoft says the RansomEXX ransomware gang has been exploiting a high-severity zero-day flaw in the Windows Common Log File System to gain SYSTEM privileges on victims’ systems. The vulnerability, tracked as CVE-2025-29824, was patched during this month’s Patch Tuesday and was only exploited in a limited number of attacks. CVE-2025-29824 is due to a use-after-free weakness that lets local attackers…
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