# Microsoft Windows Failover Cluster vulnerabilities Source: https://junglewise.ai/threats/technologies/windows-failover-cluster Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/windows-failover-cluster.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 8 vulnerabilities in Microsoft Windows Failover Cluster: 1 in the last 7 days and 8 in the last 90 days, 2 of them critical and 0 exploited in the wild. The most recent, CVE-2026-119869, was published on 10 November 2026. 4 vulnerabilities in the last four weeks, up from none in the four before. 1 critical against 0. ## Counts - Last 7 days: 1 - Last 30 days: 1 - Last 90 days: 8 - All time: 8 (2 critical, 0 exploited in the wild) ## About Microsoft Windows Failover Cluster Windows service providing failover clustering capabilities for high-availability applications. ## Latest Microsoft Windows Failover Cluster vulnerabilities - [CVE-2026-119869: Windows Failover Cluster use after free privilege escalation](https://junglewise.ai/threats/cve-2026-119869-use-after-free-in-windows-failover-cluster-allows-an-authorized) (medium, CVSS 6.4, published 10 Nov 2026) - [CVE-2026-96945: Microsoft Windows Failover Cluster denial of service via uncaught exception](https://junglewise.ai/threats/cve-2026-96945-uncaught-exception-in-windows-failover-cluster-allows-an) (high, CVSS 7.5, published 13 Oct 2026) - [CVE-2026-88102: Microsoft Windows Failover Cluster use-after-free](https://junglewise.ai/threats/cve-2026-88102-use-after-free-in-windows-failover-cluster-allows-an-unauthorized) (critical, CVSS 9.8, published 13 Oct 2026) - [CVE-2026-88099: Windows Failover Cluster uncaught exception denial of service](https://junglewise.ai/threats/cve-2026-88099-uncaught-exception-in-windows-failover-cluster-allows-an) (medium, CVSS 5.9, published 13 Oct 2026) - [CVE-2026-102192: Windows Failover Cluster integer underflow denial of service](https://junglewise.ai/threats/cve-2026-102192-integer-underflow-wrap-or-wraparound-in-windows-failover-cluster) (high, CVSS 7.5, published 13 Oct 2026) - [CVE-2026-73010: Microsoft Windows Failover Cluster use-after-free code execution](https://junglewise.ai/threats/cve-2026-73010-microsoft-windows-failover-cluster-use-after-free-code-execution) (critical, CVSS 9.8, published 8 Sep 2026) - [CVE-2026-72989: Microsoft Windows Failover Cluster information disclosure via uninitialized resource](https://junglewise.ai/threats/cve-2026-72989-microsoft-windows-failover-cluster-information-disclosure-via) (high, CVSS 7.5, published 8 Sep 2026) - [CVE-2026-71338: Microsoft Windows Failover Cluster double free privilege escalation](https://junglewise.ai/threats/cve-2026-71338-microsoft-windows-failover-cluster-double-free-privilege) (medium, CVSS 6.4, published 8 Sep 2026) ## Most severe Microsoft Windows Failover Cluster vulnerabilities - [CVE-2026-73010: Microsoft Windows Failover Cluster use-after-free code execution](https://junglewise.ai/threats/cve-2026-73010-microsoft-windows-failover-cluster-use-after-free-code-execution) (critical, CVSS 9.8, published 8 Sep 2026) - [CVE-2026-88102: Microsoft Windows Failover Cluster use-after-free](https://junglewise.ai/threats/cve-2026-88102-use-after-free-in-windows-failover-cluster-allows-an-unauthorized) (critical, CVSS 9.8, published 13 Oct 2026) - [CVE-2026-102192: Windows Failover Cluster integer underflow denial of service](https://junglewise.ai/threats/cve-2026-102192-integer-underflow-wrap-or-wraparound-in-windows-failover-cluster) (high, CVSS 7.5, published 13 Oct 2026) - [CVE-2026-72989: Microsoft Windows Failover Cluster information disclosure via uninitialized resource](https://junglewise.ai/threats/cve-2026-72989-microsoft-windows-failover-cluster-information-disclosure-via) (high, CVSS 7.5, published 8 Sep 2026) - [CVE-2026-96945: Microsoft Windows Failover Cluster denial of service via uncaught exception](https://junglewise.ai/threats/cve-2026-96945-uncaught-exception-in-windows-failover-cluster-allows-an) (high, CVSS 7.5, published 13 Oct 2026) - [CVE-2026-71338: Microsoft Windows Failover Cluster double free privilege escalation](https://junglewise.ai/threats/cve-2026-71338-microsoft-windows-failover-cluster-double-free-privilege) (medium, CVSS 6.4, published 8 Sep 2026) - [CVE-2026-119869: Windows Failover Cluster use after free privilege escalation](https://junglewise.ai/threats/cve-2026-119869-use-after-free-in-windows-failover-cluster-allows-an-authorized) (medium, CVSS 6.4, published 10 Nov 2026) - [CVE-2026-88099: Windows Failover Cluster uncaught exception denial of service](https://junglewise.ai/threats/cve-2026-88099-uncaught-exception-in-windows-failover-cluster-allows-an) (medium, CVSS 5.9, published 13 Oct 2026) ## Vulnerabilities per week 4 vulnerabilities in the last four weeks, up from none in the four before. 1 critical against 0. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 3 | 1 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 4 | 1 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 1 | 0 | 0 | ## Other Microsoft technologies - [Microsoft Windows](https://junglewise.ai/threats/technologies/windows): 2,362 vulnerabilities - [Microsoft Windows 10](https://junglewise.ai/threats/technologies/windows-10): 589 vulnerabilities - [Microsoft Windows 11 24h2](https://junglewise.ai/threats/technologies/windows-11-24h2): 565 vulnerabilities - [Microsoft Windows 11 25h2](https://junglewise.ai/threats/technologies/windows-11-25h2): 534 vulnerabilities - [Microsoft Windows Server 2025](https://junglewise.ai/threats/technologies/windows-server-2025): 534 vulnerabilities - [Microsoft Windows Server 2022](https://junglewise.ai/threats/technologies/windows-server-2022): 528 vulnerabilities - [Microsoft Windows Server 2019](https://junglewise.ai/threats/technologies/windows-server-2019): 521 vulnerabilities - [Microsoft Windows Server 2012](https://junglewise.ai/threats/technologies/windows-server-2012): 517 vulnerabilities - [Microsoft Windows 11](https://junglewise.ai/threats/technologies/windows-11): 494 vulnerabilities - [Microsoft Windows Server 2016](https://junglewise.ai/threats/technologies/windows-server-2016): 476 vulnerabilities - [Microsoft Windows 10 1809](https://junglewise.ai/threats/technologies/windows-10-1809): 380 vulnerabilities - [Microsoft Windows 10 21h2](https://junglewise.ai/threats/technologies/windows-10-21h2): 373 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Microsoft Windows Failover Cluster vulnerabilities", https://junglewise.ai/threats/technologies/windows-failover-cluster, 13 November 2026.