CVE-2025-21321

Summary

CVE-2025-21321 is a newly disclosed vulnerability affecting the Windows Kernel that permits an attacker to disclose memory information. This issue can potentially expose sensitive data, including kernel addresses and other system information, which could be utilized in further attacks. An attacker could exploit this vulnerability through a specially crafted application or maliciously crafted file, gaining unauthorized access to this information. Microsoft is working on a patch to address this vulnerability, and users are advised to apply it as soon as it becomes available to mitigate the risk. In the meantime, implementing security best practices, such as running up-to-date antivirus software and limiting user privileges, can help reduce the risk of a successful attack.

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