Windows Defender Firewall Vulnerabilities Let Attackers Escalate Privileges

Microsoft has addressed four elevation of privilege vulnerabilities in its Windows Defender Firewall service, all rated as “Important” in severity. The security flaws were detailed in Microsoft’s September 9, 2025, security update release. If exploited, these vulnerabilities could allow an authenticated attacker to gain higher privileges on an affected system. The four vulnerabilities are tracked […]

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