CVE-2026-96945
CVE-2026-96945 is a high-severity vulnerability in Microsoft Windows Server 2019 with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-248.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (57th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-248
- Affected product: Microsoft Windows Server 2019
- Published:
- Last modified:
Description
Uncaught exception in Windows Failover Cluster allows an unauthorized attacker to deny service over a network.
Frequently asked questions
- What is CVE-2026-96945?
- Uncaught exception in Windows Failover Cluster allows an unauthorized attacker to deny service over a network.
- How severe is CVE-2026-96945?
- CVE-2026-96945 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2026-96945 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-96945?
- CVE-2026-96945 primarily affects Microsoft Windows Server 2019. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2026-96945?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2026-96945 published?
- CVE-2026-96945 was published on 2026-10-13 and last updated on 2026-10-16.
References
Affected products (3)
- cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*
More vulnerabilities in Microsoft Windows Server 2019
- CVE-2020-1467 — Critical (CVSS 10.0): An elevation of privilege vulnerability exists when Windows improperly handles hard links. An attacker who successfully…
- CVE-2020-1350 — Critical (CVSS 10.0): A remote code execution vulnerability exists in Windows Domain Name System servers when they fail to properly handle…
- CVE-2026-57092 — Critical (CVSS 9.9): Use after free in Windows VMSwitch allows an authorized attacker to elevate privileges over a network.
- CVE-2025-49708 — Critical (CVSS 9.9): Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges over a network.
- CVE-2021-26424 — Critical (CVSS 9.9): Windows TCP/IP Remote Code Execution Vulnerability
- CVE-2021-34458 — Critical (CVSS 9.9): Windows Kernel Remote Code Execution Vulnerability
All CVEs affecting Microsoft Windows Server 2019 →
Other CWE-248 vulnerabilities
- CVE-2018-11466 — Critical (CVSS 9.8): A vulnerability has been identified in SINUMERIK 808D V4.7 (All versions), SINUMERIK 808D V4.8 (All versions),…
- CVE-2024-42037 — Critical (CVSS 9.3): Vulnerability of uncaught exceptions in the Graphics module Impact: Successful exploitation of this vulnerability may…
- CVE-2025-53620 — Critical (CVSS 9.2): @builder.io/qwik-city is the meta-framework for Qwik. When a Qwik Server Action QRL is executed it dynamically load the…
- CVE-2026-61666 — High (CVSS 8.9): websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.2, WebSocket::Driver.server() passes…
- CVE-2026-84994 — High (CVSS 8.7): Qwik is a performance-focused JavaScript framework. Prior to @builder.io/qwik 1.20.0 and @qwik.dev/core 2.0.0-beta.37,…
- CVE-2026-96277 — High (CVSS 8.7): Uncaught exception, Improper Handling of Exceptional Conditions vulnerability in Apache Thrift Ruby bindings. This…