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2026-007: Critical Vulnerability in Windows Netlogon

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On 12 May 2026, Microsoft published a security advisory addressing a critical vulnerability affecting Windows Server when acting as a domain controller. This vulnerability allows an unauthenticated attacker to execute arbitrary code over a network.

According to The Centre for Cybersecurity Belgium (CCB), this vulnerability is currently exploited by threat actors. It is strongly recommended updating affected Windows servers as soon as possible.

Lees de volledige melding bij CERT-EU Security AdvisoriesBron: CERT-EU Security Advisories, CC BY 4.0, samengevat en vertaald door Seinwacht.

2026-007: Critical Vulnerability in Windows Netlogon | Seinwacht