Microsoft released its August 2025 Patch Tuesday updates to fix 107 vulnerabilities across its product portfolio, including 13 critical issues. The update included a zero-day privilege-escalation flaw in Windows Kerberos, CVE-2025-53779, which can allow an authenticated attacker to gain elevated privileges over the network as part of the BadSuccessor attack path and potentially reach domain administrator access through delegated managed service accounts in Active Directory.
Microsoft also patched two critical remote code execution vulnerabilities with CVSS 9.8 severity: CVE-2025-50165 in Windows Graphics and CVE-2025-53766 in Windows GDI+. Both flaws can be triggered through specially crafted image or document content, creating a path for code execution if malicious files are processed, and Microsoft urged administrators and users to apply the security updates immediately.

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Microsoft fixed CVE-2025-53766, a critical remote code execution vulnerability in Windows GDI+ with a CVSS score of 9.8. According to the advisory summary, exploitation can occur via specially crafted image or document content.
Microsoft addressed CVE-2025-50165, a critical remote code execution vulnerability in Windows Graphics with a CVSS score of 9.8. The flaw can be triggered through specially crafted image or document content.
As part of the August 2025 security updates, Microsoft patched CVE-2025-53779, a privilege-escalation flaw in Windows Kerberos. The vulnerability was described as enabling an authenticated attacker to gain elevated privileges over the network in the BadSuccessor attack path, potentially reaching domain administrator access via delegated managed service accounts in Active Directory.
Microsoft issued its August 2025 Patch Tuesday updates, fixing 107 vulnerabilities across its product portfolio, including 13 rated critical. The update included fixes for a Windows Kerberos zero-day and two critical remote code execution flaws in Windows Graphics and Windows GDI+.
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