EXECUTIVE SUMMARY:
Multiple vulnerabilities have been identified in Microsoft products, including the Windows kernel and Windows DNS Server. These flaws include remote code execution vulnerabilities and a privilege escalation zero-day currently under active attack. The business impact is severe, as successful exploitation could allow attackers to gain complete control over systems, execute malicious code without user interaction, and move laterally across corporate networks to steal sensitive data. Organizations face significant risks of service disruption and potential data breaches if these vulnerabilities are leveraged.[/subscribe_to_unlock_form]
EXECUTIVE SUMMARY:
Multiple vulnerabilities have been identified in Microsoft products, including the Windows kernel and Windows DNS Server. These flaws include remote code execution vulnerabilities and a privilege escalation zero-day currently under active attack. The business impact is severe, as successful exploitation could allow attackers to gain complete control over systems, execute malicious code without user interaction, and move laterally across corporate networks to steal sensitive data. Organizations face significant risks of service disruption and potential data breaches if these vulnerabilities are leveraged.[emaillocker id="1283"]
CVE-2026-68820 (CVSS 7.0 High): This is a use-after-free vulnerability in the Windows Ancillary Function Driver that allows an attacker with existing code execution to escalate privileges to SYSTEM and is currently under active attack.
CVE-2026-62878 (CVSS 9.8 Critical): A stack-based buffer overflow vulnerability in Windows DNS Server allows an unauthenticated remote attacker to execute arbitrary code over a network without user interaction.
CVE-2026-62893 (CVSS 9.8 Critical): This is a remote flaw reachable through the service's TFTP handling without authentication or user interaction in Windows Deployment Services.
CVE-2026-62815 (CVSS 9.8 Critical): A use-after-free vulnerability in Microsoft QUIC allows an unauthorized attacker to execute arbitrary code remotely over a network.
CVE-2026-59124 (CVSS 9.8 Critical): A deserialization of untrusted data vulnerability in Microsoft High Performance Computing (HPC) Pack allows an unauthorized attacker to execute arbitrary code remotely over a network.
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REFERENCES:
The following reports contain further technical details:
https://thehackernews.com/2026/08/microsoft-patches-398-flaws-including.html
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