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A Security Bypass vulnerability (CVE-2025-21299) has been identified in Microsoft Windows Kerberos. The vulnerability was first recorded on December 10, 2024, and affects multiple versions of Windows operating systems, including Windows 10, Windows 11, and various Windows Server editions (CVE Mitre).
The vulnerability stems from an error in how the vulnerable system handles maliciously crafted requests in the Windows Kerberos implementation. This flaw could potentially allow attackers to bypass security mechanisms on affected systems (FortiGuard).
The primary impact of this vulnerability is the potential for security bypass, where remote attackers can circumvent security checks on vulnerable systems (FortiGuard).
Microsoft has released security updates to address this vulnerability. The recommended action is to apply the most recent upgrade or patch from the vendor (FortiGuard).
Source: This report was generated using AI
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