windows 10 1809 vulnerabilities and fixes

Recent CVEs affecting windows 10 1809, with upgrade or downgrade steps. 23 tracked.

Also searched as: windows101809.

windows 10 1809 has 23 tracked vulnerabilities, 0 critical and 2 exploited in the wild (CISA KEV). A fixed release or vendor patch exists for 23. Most recent: 2026-10-13. Highest priority: CVE-2026-85880 (score 80/100).

• CVE-2026-62785 HIGH 8.8 UPGRADE UPGRADE Heap-based buffer overflow in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized atta
• CVE-2026-62795 HIGH 8.8 UPGRADE UPGRADE Use after free in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to exec
• CVE-2026-49179 HIGH 8.8 UPGRADE UPGRADE Improper neutralization of special elements used in a command ('command injection') in Windows Active Director
• CVE-2026-108132 HIGH 7.0 UPGRADE UPGRADE Double free in Windows Kerberos allows an authorized attacker to elevate privileges locally.
• CVE-2026-108136 HIGH 7.8 UPGRADE UPGRADE Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges local
• CVE-2026-108396 HIGH 7.0 UPGRADE UPGRADE Time-of-check time-of-use (toctou) race condition in Windows Modern Device Management (MDM) allows an authoriz
• CVE-2026-83862 HIGH 8.8 UPGRADE UPGRADE Use after free in Windows Network Load Balancing allows an unauthorized attacker to execute code over an adjac
• CVE-2026-68836 HIGH 7.8 UPGRADE UPGRADE Heap-based buffer overflow in Windows kernel32.dll allows an authorized attacker to elevate privileges locally
• CVE-2026-69326 HIGH 8.8 UPGRADE UPGRADE Heap-based buffer overflow in Graphic Fonts allows an unauthorized attacker to execute code over a network.
• CVE-2026-69354 HIGH 7.8 UPGRADE UPGRADE Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges loca
• CVE-2026-69363 HIGH 8.0 UPGRADE UPGRADE Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges over
• CVE-2026-69387 HIGH 7.0 UPGRADE UPGRADE Use after free in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
• CVE-2026-69452 HIGH 7.1 UPGRADE UPGRADE Use after free in Windows Enterprise App Management allows an authorized attacker to elevate privileges over a
• CVE-2026-69471 HIGH 7.8 UPGRADE UPGRADE Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
• CVE-2026-69506 MEDIUM 4.7 UPGRADE UPGRADE Out-of-bounds read in Windows Key Storage Provider allows an authorized attacker to disclose information local
• CVE-2026-69521 HIGH 8.8 UPGRADE UPGRADE Integer overflow or wraparound in Windows iSCSI allows an unauthorized attacker to execute code over a network
• CVE-2026-96222 HIGH 7.4 UPGRADE UPGRADE Improper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacke
• CVE-2026-96912 HIGH 7.8 UPGRADE UPGRADE Use after free in Windows Client License Service allows an authorized attacker to elevate privileges locally.
• CVE-2026-96911 HIGH 7.8 UPGRADE UPGRADE Improper link resolution before file access ('link following') in Microsoft Windows Search Component allows an
• CVE-2026-96914 HIGH 8.8 UPGRADE UPGRADE Integer overflow or wraparound in Windows Virtualization-Based Security (VBS) Enclave allows an authorized att
• CVE-2026-96913 HIGH 8.8 UPGRADE UPGRADE Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
• CVE-2026-96951 HIGH 8.8 EXPLOITED MITIGATE UPGRADE Microsoft Windows Command Injection Vulnerability
• CVE-2026-85880 HIGH 7.8 EXPLOITED UPGRADE UPGRADE Microsoft Windows Heap-Based Buffer Overflow Vulnerability

FAQ

How do I fix windows 10 1809 vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is windows 10 1809 being exploited right now?

Yes: 2 windows 10 1809 CVEs are on the CISA Known Exploited Vulnerabilities list, so patch those first.

Which windows 10 1809 CVE should I patch first?

CVE-2026-85880 currently ranks highest (80/100): Microsoft Windows Heap-Based Buffer Overflow Vulnerability.

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