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Vulnerabilities

Vulnerability · CVE-2026-102192

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

Published Oct 13, 2026 · catalog updated Oct 20, 2026 · windows server 2019

Open the advisory

Exploitation likelihood is not on this record for CVE-2026-102192. A missing EPSS score is not a low risk. Compare windows server 2019 with the linked advisory before you change production.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
  • EPSS is missing. A missing score is not a low risk.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Awaiting synchronization with FIRST
Remediation
Version ranges on file
Affected products
cpe microsoft/windows server 2019 · cpe microsoft/windows server 2022 · cpe microsoft/windows server 2025

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

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe microsoft/windows server 2019< 10.0.17763.9376
  • cpe microsoft/windows server 2022< 10.0.20348.5761
  • cpe microsoft/windows server 2025< 10.0.26100.33650

How to fix CVE-2026-102192

  • Recommended remediation

    Affected version ranges suggest a fixed boundary. Verify against the vendor advisory for your release.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for CVE-2026-102192. A missing EPSS score is not a low risk. Compare windows server 2019 with the linked advisory before you change production.

Which versions are affected?

Compare what you have installed with microsoft/windows server 2019 < 10.0.17763.9376; microsoft/windows server 2022 < 10.0.20348.5761; microsoft/windows server 2025 < 10.0.26100.33650. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-191: Integer Underflow. EPSS is not on this record yet. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Windows security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 13, 2026 · NIST NVD

    Detected

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

  2. Oct 20, 2026 · NIST NVD

    Updated

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

Sources

  • NIST NVDVulnerability recordCVE-2026-102192

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

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 20, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.