What is CVE-2026-102192?

CVE-2026-102192 is a high-severity vulnerability in Microsoft Windows Server 2019, classified under Integer Underflow. CVSS score: 7.5/10. Published 2026-10-13.

How severe is CVE-2026-102192?

High severity. CVSS v3 base score is 7.5 out of 10.

Integer overflow in Microsoft Windows Server 2019

CVE-2026-102192

Integer underflow (wrap or wraparound) in Windows Failover Cluster allows an unauthorized attacker to deny service over a network.

Published 2026-10-13 · last modified 2026-10-13.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Microsoft Windows Server 2019
Microsoft Windows Server 2019 (Server Core Installation)
Microsoft Windows Server 2022
Microsoft Windows Server 2025
Microsoft Windows Server 2025 (Server Core Installation)

Weakness classification (CWE)

CWE-191 — Integer Underflow

References

Windows Failover Cluster Denial of Service Vulnerability (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-102192?: CVE-2026-102192 is a high-severity vulnerability in Microsoft Windows Server 2019, classified under Integer Underflow. CVSS score: 7.5/10. Published 2026-10-13.
How severe is CVE-2026-102192?: High severity. CVSS v3 base score is 7.5 out of 10.