cve 2026 21243

  1. Urgent: CVE-2026-21243 Windows LDAP DoS — Act Now on Domain Controllers

    Microsoft’s security feed now lists CVE-2026-21243 as a vulnerability in the Windows Lightweight Directory Access Protocol (LDAP) that can be leveraged to cause a denial-of-service condition against Windows systems, and the advisory emphasizes uncertainty around the detailed technical root cause...
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    • cve 2026 21243 domain controllers ldap vulnerability windows security
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    • Forum: Security Alerts