CVE-2026-88099(microsoft / windows_server_2019)

LOWCVSS 5.9 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Uncaught exception in Windows Failover Cluster allows an unauthorized attacker to deny service over a network.

microsoft CVEs Back to dashboard

0.0/ 10 priority

Sources & remediation

Patch / fix

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88099

Weakness type (CWE)

CWE-248

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

windows_server_2019
windows_server_2022
windows_server_2025

Threat summary

1 mentions across 1 observed day

What's happening

1 total mentions across 1 day

Affected systems

Vendors

microsoft

Products

windows_server_2019windows_server_2022windows_server_2025

Deep dive

Activity timeline1 mentions / 1d

Referenced assets1 URL

By indicator

https://vulnipulse.com/advisories/microsoft-cve-2026-88099

Full discourse1 post

VulniPulse@vulnipulse13h
CVE advisory: CVE-2026-88099 - microsoft: Windows Failover Cluster Denial of Service Vulnerability. https://vulnipulse.com/advisories/microsoft-cve-2026-88099 #CVE #CyberSecurity #Microsoft #WindowsServer
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23 followersView on X

CPE platform detail3 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

3 of 3 entries

Part	Vendor	Product	Version	Target SW	Target HW
OS	microsoft	windows_server_2019	-	-	x64
OS	microsoft	windows_server_2022	-	-	x64
OS	microsoft	windows_server_2025	-	-	x64

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