CVE-2016-0099: Microsoft Windows Secondary Logon Service Privilege Escalation Vulnerability

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

A privilege escalation vulnerability exists in Microsoft Windows if the Windows Secondary Logon Service fails to properly manage request handles in memory. An attacker who successfully exploited this vulnerability could run arbitrary code as an administrator.

SOURCES

• CISA KEVCISA Known Exploited Vulnerabilities catalog

Other Microsoft flaws

• patchtuesday:2026-11: Vulnerability in Microsoft
• CVE-2026-124194: Microsoft Office Outlook Missing User Interaction for Potentially Unsafe Action Vulnerability
• CVE-2026-96951: Microsoft Windows Command Injection Vulnerability
• CVE-2026-65660: Microsoft SharePoint Code Injection Vulnerability
• CVE-2026-85880: Microsoft Windows Heap-Based Buffer Overflow Vulnerability

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.