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CVE-2026-20927

Опубликовано: 13 янв. 2026
Источник: msrc
CVSS3: 5.3
EPSS Низкий

Описание

Windows SMB Server Denial of Service Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to deny service over a network.

FAQ

According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?

Successful exploitation of this vulnerability requires an attacker to win a race condition.

Обновления

ПродуктСтатьяОбновление
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
Windows Server 2012
Windows Server 2012 (Server Core installation)
Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)

Показывать по

Возможность эксплуатации

Publicly Disclosed

No

Exploited

No

Latest Software Release

Exploitation Unlikely

EPSS

Процентиль: 20%
0.00064
Низкий

5.3 Medium

CVSS3

Связанные уязвимости

CVSS3: 5.3
nvd
22 дня назад

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to deny service over a network.

CVSS3: 5.3
github
22 дня назад

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to deny service over a network.

CVSS3: 5.3
fstec
22 дня назад

Уязвимость компонента SMB Server операционной системы Windows, позволяющая нарушителю вызвать отказ в обслуживании

EPSS

Процентиль: 20%
0.00064
Низкий

5.3 Medium

CVSS3