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Microsoft security patch release for CVE-2025-62221

Security Patch Release
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Last updated
Happening score
H score 52
1 unique sources, 1 articles

Summary

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Microsoft's December 2025 Patch Tuesday fixes 57 flaws, including CVE-2025-62221 and two publicly disclosed zero-days, reducing exposure to local privilege escalation and code execution. The release covers Windows Cloud Files Mini Filter Driver, GitHub Copilot for JetBrains, and PowerShell. Microsoft says the Windows flaw was actively exploited and could grant SYSTEM privileges. The bulletin also includes three Critical remote code execution vulnerabilities.

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Timeline

  1. 09.12.2025 20:38 2 articles · 7mo ago

    Microsoft December 2025 Patch Tuesday release

    Initial Disclosure

    Microsoft's December 2025 Patch Tuesday resolves 57 flaws, including CVE-2025-62221, an actively exploited Windows Cloud Files Mini Filter Driver elevation-of-privilege vulnerability, and two publicly disclosed zero-days, CVE-2025-64671 in GitHub Copilot for Jetbrains and CVE-2025-54100 in PowerShell.

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  2. 09.12.2025 20:38 1 articles · 7mo ago

    Technical details for the December 2025 zero-days

    Technical Analysis Update

    Microsoft says CVE-2025-62221 in Windows Cloud Files Mini Filter Driver is a use-after-free that lets an authorized attacker elevate privileges locally to SYSTEM, CVE-2025-64671 in GitHub Copilot for Jetbrains can be abused through malicious Cross Prompt Injection in untrusted files or MCP servers to execute additional commands locally, and CVE-2025-54100 in PowerShell can run script code when Invoke-WebRequest retrieves web content unless -UseBasicParsing is used.

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