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CVE-2026-21251

Опубликовано: 10 фев. 2026
Источник: msrc
CVSS3: 7.8
EPSS Низкий

Описание

Cluster Client Failover (CCF) Elevation of Privilege Vulnerability

Use after free in Windows Cluster Client Failover allows an authorized attacker to elevate privileges locally.

FAQ

What privileges could be gained by an attacker who successfully exploited this vulnerability?

An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Обновления

ПродуктСтатьяОбновление
Windows Server 2016
Windows Server 2016 (Server Core installation)
Windows Server 2019
Windows Server 2019 (Server Core installation)
Windows Server 2022
Windows Server 2022 (Server Core installation)
Windows Server 2022, 23H2 Edition (Server Core installation)
Windows Server 2025
Windows Server 2025 (Server Core installation)

Показывать по

Возможность эксплуатации

Publicly Disclosed

No

Exploited

No

Latest Software Release

Exploitation Unlikely

EPSS

Процентиль: 10%
0.00034
Низкий

7.8 High

CVSS3

Связанные уязвимости

CVSS3: 7.8
nvd
около 2 месяцев назад

Use after free in Windows Cluster Client Failover allows an authorized attacker to elevate privileges locally.

CVSS3: 7.8
github
около 2 месяцев назад

Use after free in Windows Cluster Client Failover allows an authorized attacker to elevate privileges locally.

CVSS3: 7.8
fstec
около 2 месяцев назад

Уязвимость механизма CCF (Cluster Client Failover) операционных систем Windows, позволяющая нарушителю повысить свои привилегии

EPSS

Процентиль: 10%
0.00034
Низкий

7.8 High

CVSS3