CVE-2026-88099
MediumCVSS 5.9Exploitation Probability (EPSS)
Elevated risk57th percentile - higher than 57% of all known CVEs
Summary
Uncaught exception in Windows Failover Cluster allows an unauthorized attacker to deny service over a network.
Risk Assessment
The attack may cause cluster failure, impacting availability of critical services and applications.
Recommendation
Install Windows updates and monitor clusters for unusual events.
Other vulnerabilities in Windows Failover Cluster
See all- CVE-2026-88102Critical
Use-after-free vulnerability in Windows Failover Cluster allows an unauthorized attacker to execute code over a network.
- CVE-2026-73010Critical
Use after free in Windows Failover Cluster allows an unauthorized attacker to execute code over a network.
- CVE-2026-96945High
Uncaught exception in Windows Failover Cluster allows an unauthorized attacker to deny service over a network.
- CVE-2026-102192High
An integer underflow (wrap or wraparound) vulnerability in Windows Failover Cluster allows an unauthorized attacker to deny service over a network.
- CVE-2026-78444High
Untrusted pointer dereference in Windows Failover Cluster allows an unauthorized attacker to execute code over a network.
- CVE-2026-72989High
Use of uninitialized resource in Windows Failover Cluster allows an unauthorized attacker to disclose information over a network.
- CVE-2026-71338Medium
Double free in Windows Failover Cluster allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
Uncaught exception in Windows Failover Cluster allows an unauthorized attacker to deny service over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS